CBSE Class 7 Mathematics/Important Practice Problems/Chapter1: Integers

Welcome to our class 7 Mathematics blog! Today, we’ll explore integers, which include positive numbers,
negative numbers and zero. You will learn about their properties, basic operations and practical uses.

Answer the following:

1. Additive inverse of -15 is ——–
   Answer: 15
2. Fill in the blanks for (-85) + 50 —— 85 + (-50)
   Answer: <
3. Find the product of (-2) x (-6) x (-1)
   Answer: -12
4. Write down a pair of negative integers whose sum is -9.
   Answer: (-5) + (-4)
5. Write down a pair of integers whose sum is zero.
   Answer: 6 + (-6)
6. Write down a pair of negative integers whose difference gives 6.
   Answer: (-8) – (-14) = (-8) + 14 = 6
7. Write down a negative integer and a positive integer whose difference is -5.
   Answer: (-4) – (1) = (-4) + (-1) = -5
8. Fill in the blanks: (-43) + —- = -43
   Answer: 0
9. Fill in the blanks: 23 + — = 0
   Answer: -23
10. Find the value of (-25) x (-4)
    Answer: 100
11. Fill in the blanks to make the following statements true: (-4) + (-2) = (-2) + —
    Answer: (-4)
12. The number of integers between -3 and 3 is ——
    Answer: -2, -1, 0, 1, 2
13. Sum of (-20) and (-10) is ———–
    Answer: -30
14. (-64) divided by 8 is ——
    Answer: -8
15. 7 added to (-7) is ——-
    Answer: 0
16. Predecessor of -19 is ———–
    Answer: -20
17. Successor of -19 is ———
    Answer: -18
18. The product of (-34), 26 and 0 is ————
    Answer: 0
19. 25 divided by (-5) is ———
    Answer: -5
20. The reciprocal of -3 is ——-
    Answer: -1/3