### Integers - Worksheets

CBSE Worksheet-01

CLASS - VII Mathematics (Integers)

Choose correct option in questions 1 to 5.

- 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?
- 6500 m
- 3500 m
- 3000 m
- 6000 m

- (-5) × 6 = _____
- 30
- -30
- 11
- -11

- (-6) × (-4) × (-2) = _______
- 48
- 12
- -48
- -12

- 10 × [(6 + (-2)] = _______
- 80
- -40
- -80
- 40

- 21 ÷ (-3) =_______
- -7
- 7
- 18
- -18

Fill in the blanks:

- On a number line when we subtract a _________ integer, we move to the right.
- The ________ of any integer
*(-a)*is*a.* - For any integer
*a, a*+ 0 =*a*= ________. - For any three integers
*a*,*b*and*c,*(*a*×*b*) ×*c*= ________. - Find:
- 80 ÷ (-5)
- 64 ÷ (-16)

- 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?
- 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

- a
- b
- c
- d
- a
- negative
- additive inverse
- 0 +
*a* *a*× (*b*×*c*)- -16
- -4

- 175 pencils
- The final position of the elevator = -225 + 15 = -210 m, i.e., 210 m below ground level.