Lessons Primary 4 Mathematics BASIC OPERATIONS

Addition and Subtraction of Whole Numbers for Primary 4

Pupils explore addition and subtraction of whole numbers by working with addition and. Clear explanations and structured practice strengthen subject knowledge, vocabulary and practical skills while keeping the lesson connected to real-life contexts.

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Curriculum at a glance Your lesson roadmap Class, subject, theme and the learning goal for this lesson.

Class Primary 4

Subject Mathematics

Theme BASIC OPERATIONS

Topic Addition and Subtraction

Curriculum September 2025

Sequence 5

Learning outcome

Add, subtract, multiply, divide numbers, decimals and differentiate types of fractions.

Focal competence

Adding and subtracting three 4-digit numbers.

ARTICLE CONTENTSOn this page 6 sections

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Addition and Subtraction of Whole Numbers for Primary 4

Performance Objectives

By the end of the lesson, students should be able to:

add and subtract whole numbers;
perform addition and subtraction of three 4-digit numbers taking two at a time;
carry out addition and subtraction in everyday life activities;
solve quantitative aptitude problems involving addition and subtraction of whole numbers in 4-digits.

Understanding Whole Numbers

Whole numbers are the numbers 0, 1, 2, 3, 4, 5, and so on, without any fractions or decimals. They are used for counting and measuring.

In Primary 4, learners work with larger whole numbers, especially up to four digits. Understanding place value is very important when adding and subtracting these numbers.

Place Value of 4-Digit Numbers

A 4-digit number has four places: Thousands, Hundreds, Tens, and Ones. Each digit in a number has a value based on its position.

For example, in the number 3,456:

The digit 3 is in the Thousands place, so its value is 3,000.
The digit 4 is in the Hundreds place, so its value is 400.
The digit 5 is in the Tens place, so its value is 50.
The digit 6 is in the Ones place, so its value is 6.

Addition of Whole Numbers

Addition is the process of combining two or more numbers to find their total sum. The symbol for addition is ‘+’.

Adding Two 4-Digit Numbers Without Regrouping

When adding numbers without regrouping, the sum of the digits in each place value column is 9 or less. This means no “carrying over” to the next place value is needed.

Example 1: Add 2,341 and 5,123.

Solution:

Align the numbers by their place values (Ones under Ones, Tens under Tens, and so on). Then add each column starting from the Ones place.

$$
\begin{array}{r}
2341 \\
+5123 \\
\hline
7464
\end{array}
$$

Add the Ones: $1 + 3 = 4$. Write 4 in the Ones place.
Add the Tens: $4 + 2 = 6$. Write 6 in the Tens place.
Add the Hundreds: $3 + 1 = 4$. Write 4 in the Hundreds place.
Add the Thousands: $2 + 5 = 7$. Write 7 in the Thousands place.

The sum is 7,464.

Adding Two 4-Digit Numbers With Regrouping (Carrying)

Regrouping, also known as carrying, happens when the sum of the digits in a place value column is 10 or more. The ‘tens’ part of the sum is carried over to the next higher place value column.

Example 2: Add 3,857 and 2,465.

Solution:

$$
\begin{array}{r}
\text{ } \text{ } \text{ } \text{ } 1 \text{ } 1 \\ % Carries
3857 \\
+2465 \\
\hline
6322
\end{array}
$$

Add the Ones: $7 + 5 = 12$. Write 2 in the Ones place and carry over 1 to the Tens place.
Add the Tens: $5 + 6 + 1 \text{ (carried over)} = 12$. Write 2 in the Tens place and carry over 1 to the Hundreds place.
Add the Hundreds: $8 + 4 + 1 \text{ (carried over)} = 13$. Write 3 in the Hundreds place and carry over 1 to the Thousands place.
Add the Thousands: $3 + 2 + 1 \text{ (carried over)} = 6$. Write 6 in the Thousands place.

The sum is 6,322.

Adding Three 4-Digit Numbers (Taking Two at a Time)

To add three 4-digit numbers, you first add any two of the numbers. Then, you add the sum you got to the third number. This is what “taking two at a time” means.

Example 3: Add 1,234, 3,456, and 2,105.

Solution:

Step 1: Add the first two numbers (1,234 and 3,456).

$$
\begin{array}{r}
1234 \\
+3456 \\
\hline
4690
\end{array}
$$

Step 2: Add the sum from Step 1 (4,690) to the third number (2,105).

$$
\begin{array}{r}
4690 \\
+2105 \\
\hline
6795
\end{array}
$$

The total sum is 6,795.

Subtraction of Whole Numbers

Subtraction is the process of taking one number away from another to find the difference. The symbol for subtraction is ‘-‘.

Subtracting Two 4-Digit Numbers Without Regrouping

When subtracting without regrouping, each digit in the bottom number is smaller than or equal to the digit above it in the top number. No “borrowing” is needed.

Example 4: Subtract 1,234 from 5,478.

Solution:

Align the numbers by their place values. Subtract each column starting from the Ones place.

$$
\begin{array}{r}
5478 \\
-1234 \\
\hline
4244
\end{array}
$$

Subtract the Ones: $8 – 4 = 4$. Write 4 in the Ones place.
Subtract the Tens: $7 – 3 = 4$. Write 4 in the Tens place.
Subtract the Hundreds: $4 – 2 = 2$. Write 2 in the Hundreds place.
Subtract the Thousands: $5 – 1 = 4$. Write 4 in the Thousands place.

The difference is 4,244.

Subtracting Two 4-Digit Numbers With Regrouping (Borrowing)

Regrouping, also known as borrowing, happens when a digit in the top number is smaller than the digit below it in the same place value column. You borrow from the digit in the next higher place value column.

Example 5: Subtract 2,849 from 6,325.

Solution:

Look at the Ones place: You cannot subtract 9 from 5. So, you need to borrow from the Tens place.
Borrow from the Tens place: The 2 in the Tens place becomes 1. The 5 in the Ones place becomes 15. Now, $15 – 9 = 6$. Write 6 in the Ones place.
Look at the Tens place: You cannot subtract 4 from 1. So, you need to borrow from the Hundreds place.
Borrow from the Hundreds place: The 3 in the Hundreds place becomes 2. The 1 in the Tens place becomes 11. Now, $11 – 4 = 7$. Write 7 in the Tens place.
Look at the Hundreds place: You cannot subtract 8 from 2. So, you need to borrow from the Thousands place.
Borrow from the Thousands place: The 6 in the Thousands place becomes 5. The 2 in the Hundreds place becomes 12. Now, $12 – 8 = 4$. Write 4 in the Hundreds place.
Look at the Thousands place: $5 – 2 = 3$. Write 3 in the Thousands place.

The difference is 3,476.

Subtracting Three 4-Digit Numbers (Taking Two at a Time)

To subtract three 4-digit numbers, you first subtract the second number from the first number. Then, you subtract the third number from the result you got. This is “taking two at a time”.

Example 6: Subtract 1,200 and 1,500 from 7,850.

Solution:

Step 1: Subtract the first number (1,200) from 7,850.

$$
\begin{array}{r}
7850 \\
-1200 \\
\hline
6650
\end{array}
$$

Step 2: Subtract the third number (1,500) from the result of Step 1 (6,650).

$$
\begin{array}{r}
6650 \\
-1500 \\
\hline
5150
\end{array}
$$

The final difference is 5,150.

Addition and Subtraction in Everyday Life Activities

Addition and subtraction are used every day to solve problems involving quantities, money, distances, and more.

Example 7: A farmer harvested 3,560 yams in the first week and 2,875 yams in the second week. How many yams did the farmer harvest in total?

Solution:

This is an addition problem because you need to find the total.

$$
\begin{array}{r}
\text{ } \text{ } \text{ } \text{ } 1 \text{ } 1 \\
3560 \\
+2875 \\
\hline
6435
\end{array}
$$

The farmer harvested a total of 6,435 yams.

Example 8: A school has 4,500 pupils. If 1,870 pupils are girls, how many boys are in the school?

Solution:

This is a subtraction problem because you need to find the difference between the total pupils and the number of girls.

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\text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \text{ } \

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KEEP YOUR MOMENTUMNext in Mathematics

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BASIC OPERATIONS

Addition and Subtraction Contd.

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Addition and Subtraction of Whole Numbers for Primary 4

Performance Objectives

Understanding Whole Numbers

Place Value of 4-Digit Numbers

Addition of Whole Numbers

Adding Two 4-Digit Numbers Without Regrouping

Adding Two 4-Digit Numbers With Regrouping (Carrying)

Adding Three 4-Digit Numbers (Taking Two at a Time)

Subtraction of Whole Numbers

Subtracting Two 4-Digit Numbers Without Regrouping

Subtracting Two 4-Digit Numbers With Regrouping (Borrowing)

Subtracting Three 4-Digit Numbers (Taking Two at a Time)

Addition and Subtraction in Everyday Life Activities

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