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Number System Model Question Paper

7th Standard EM

    Reg.No. :
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Maths

Time : 01:00:00 Hrs
Total Marks : 40
    5 x 1 = 5
  1. 11×(–1)=_____

    (a)

    -1

    (b)

    0

    (c)

    +1

    (d)

    –11

  2. (-2)×−(-9)=_____

    (a)

    108

    (b)

    -108

    (c)

    +1

    (d)

    -1

  3. Which of the following does not represent an Integer?

    (a)

    0÷(-7)

    (b)

    20÷(−4)

    (c)

    (-9)÷3

    (d)

    (12)÷5

  4. (−16)÷4 is the same as

    (a)

    -(-16÷4)

    (b)

    −(16)÷(-4)

    (c)

    16÷(-4)

    (d)

    −4÷16

  5. (−200)÷10is

    (a)

    20

    (b)

    -20

    (c)

    -190

    (d)

    210

  6. 5 x 2 = 10
  7. In a quiz competition, Team A scored +30,–20, 0 and team B scored –20, 0, +30 in three successive rounds. Which team will win? Can we say that we can add integers in any order?

  8. Are(11+7)+10 and 11+(7+10) equal? Mention the property.

  9. Kannan has a fruit shop. He sells 1 dozen banana at a loss of Rs.2 each because it may get rotten next day. What is his loss?

  10. A submarine was situated at 650 feet below the sea level. If it descends 200 feet, what is its new position?

  11. An elevator is on the twentieth floor, It goes down 11floors and then up 5 floors, What floor is the elevator on now?

  12. 5 x 3 = 15
  13. From the ground floor a man went up six floors and came down six floors. In which floor is he now?

  14. Each day, the workers drill down 22 feet further until they hit a pool of water. If the water is at 110 feet, on which day will they hit the pool of water?

  15. How many years are between 323 BC(BCE) and 1687 AD(CE)?

  16. A submarine was situated 450 feet below sea level. If it descends 300 feet. What is its new position?

  17. In January the high temperature recorded was 90°F and the low temperature was -2°R Find the difference between the high and the low temperatures?

  18. 2 x 5 = 10
  19. The temperature at Srinagar was −3°C on Friday. If the temperature decreases by 1°C next day, then what is the temperature on that day?

  20. A submarine is at 300 feet below the sea level. If it ascends to 175 feet, what is its new position?

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