Integers - Worksheets

 CBSE Worksheet-01

CLASS - VII Mathematics (Integers)

Choose correct option in questions 1 to 5.

  1. A plane is flying at the height of 5000 m above the sea level. At a particular point, it is exactly above a submarine floating 1500 m below the sea level. What is the vertical distance between them?
    1. 6500 m
    2. 3500 m
    3. 3000 m
    4. 6000 m
  2. (-5) × 6 = _____
    1. 30
    2. -30
    3. 11
    4. -11
  3. (-6) × (-4) × (-2) = _______
    1. 48
    2. 12
    3. -48
    4. -12
  4. 10 × [(6 + (-2)] = _______
    1. 80
    2. -40
    3. -80
    4. 40
  5. 21 ÷ (-3) =_______
    1. -7
    2. 7
    3. 18
    4. -18

Fill in the blanks:

  1. On a number line when we subtract a _________ integer, we move to the right.
  2. The ________ of any integer (-a) is a.
  3. For any integer a, a + 0 = a = ________.
  4. For any three integers a, b and c, (a × b) × c = ________.
  5. Find:
    1. 80 ÷ (-5)
    2. 64 ÷ (-16)
  6. A shopkeeper earns a profit of Re 1 by selling one pen and incurs a loss of 40 paise per pencil while selling pencils of her old stock. In a particular month she incurs a loss of Rs 5. In a month she earns neither profit nor loss. If she sold 70 pens, how many pencils did she sell?
  7. Suppose we represent the distance above the ground by a positive integer and that below the ground by a negative integer. If an elevator descends at a rate of 5m/min and begins to descend from 15 m above the ground, what will be its position after 45 minutes?

CBSE Worksheet-01
CLASS - VII Mathematics (Integers)
Answer key

  1. a
  2. b
  3. c
  4. d
  5. a
  6. negative
  7. additive inverse
  8. 0 + a
  9. a × (b × c)
    1. -16
    2. -4
  11. 175 pencils
  12. The final position of the elevator = -225 + 15 = -210 m, i.e., 210 m below ground level.