Counting Whole Numbers to Millions in Groups for Primary 4
Whole numbers extend from zero into the millions. A digit's position determines its value, and counting in groups…
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Primary 4 · Mathematics
22 lessonsLessons by Theme
AThemeNUMBER NUMERATION
4
NUMBER NUMERATION
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Place Value, Ordering Whole Numbers and Roman Numerals for Primary 4
Place value tells what each digit is worth in a number. Ordering numbers compares those values, while Roman…
LCM, HCF and Prime Numbers for Primary 4
A prime number has exactly two factors: one and itself. The HCF is the greatest common factor of…
Types of Fractions, Mixed Numbers and Equivalent Fractions for Primary 4
A fraction's numerator counts selected equal parts, while its denominator shows the total parts. Mixed numbers combine whole…
BThemeBASIC OPERATIONS
8
BASIC OPERATIONS
Addition and Subtraction of Whole Numbers for Primary 4
Adding four-digit numbers joins place values in columns; subtraction finds the difference. Regrouping is used when a column…
Addition and Subtraction of Fractions and Mixed Numbers for Primary 4
Fractions with the same denominator can be added or subtracted by combining their numerators. Mixed numbers may need…
Addition and Subtraction of Decimals for Primary 4
Decimal numbers use a point to separate whole units from tenths and hundredths. Keeping decimal points aligned helps…
Multiplication of Whole Numbers, Fractions and Decimals for Primary 4
Multiplication combines equal groups efficiently. Whole numbers, fractions and decimals follow related rules, but place value affects the…
Squares and Square Roots of Numbers for Primary 4
Squaring a number means multiplying it by itself: 6 × 6 = 36. The square root reverses the…
Division of Whole Numbers with and without Remainders for Primary 4
Division shares a quantity equally or divides it into equal groups. A remainder is the amount left when…
Rounding Numbers and Estimating Sums, Products and Measurements for Primary 4
Rounding replaces a number with a nearby simpler value. Estimates of costs, distances or calculations help check whether…
Meaning of Open Sentences and Finding Missing Numbers for Primary 4
An open sentence becomes true when the missing number is replaced with the correct value. A box or…