JSS 1 Mathematics Flashcards: Addition and Subtraction of Positive and Negative Integers

Question 1

Starting at −4 on a number line, move 9 units to the right. Where do you stop?

Accepted Answer

5

Question 2

Evaluate 7 − 12.

Accepted Answer

−5

Question 3

A freezer is at −6°C and becomes 3°C colder. What is its new temperature?

Accepted Answer

−9°C

Question 4

Complete the calculation: −8 − (−5) = ________.

Accepted Answer

−3

Question 5

At dawn the temperature was −2°C. By noon it had risen 7°C. The noon temperature was ________.

Accepted Answer

5°C

Question 6

A trader’s balance is −₦350. After she pays in ₦500, what is the new balance?

Accepted Answer

₦150

Question 7

A diver is 12 metres below sea level and rises 5 metres. Which integer gives the new position?

Accepted Answer

−7

Question 8

A quiz awards 3 points for a correct answer and removes 5 for a wrong one. One correct and one wrong answer give a total of ________.

Accepted Answer

−2 points

Question 9

From −4, Fatima moves six equal steps to the right on a number line. Her final position is ________.

Accepted Answer

2

Question 10

How far apart are −3 and 5 on a number line?

Accepted Answer

8 units

Question 11

Choose the true comparison.

Accepted Answer

−2 is greater than −7

Question 12

A lift goes up 6 floors and then down 9 floors. Which expression represents its overall movement?

Accepted Answer

+6 + (−9)

Question 13

Kunle writes −5 + (−4) = 9. What sign should the correct answer have?

Accepted Answer

negative; the answer is −9

Question 14

The integer directly opposite +11 on a number line is ________.

Accepted Answer

−11

Question 15

Why does −13 + 13 equal zero?

Accepted Answer

The integers are additive inverses

Question 16

In 47,305, what is the place value of the digit 7?

Accepted Answer

7,000

Question 17

A school budget of ₦1,200,000 is reduced by ₦875,650. How much remains?

Accepted Answer

₦324,350

Question 18

Add 8,065 and 2,947.

Accepted Answer

11,012

Question 19

A hilltop is 25 metres above sea level. A path descends 40 metres from there. What is the path’s final elevation?

Accepted Answer

−15 metres

Question 20

A game record shows +6, −2, −7 and +4 points. What is the player’s overall change?

Accepted Answer

+1 point

Strong work.