Class 7 maths important question for chapter one in state board english medium syllabus

7th Standard 2019 EM

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Maths

Use blue pen only
Time : 00:20:00 Hrs
Total Marks : 20

    Part - A

    Answer each of the following questions

    5 x 1 = 5
  1. (-10)+(+7)=____

    (a)

    +3

    (b)

    -3

    (c)

    -17

    (d)

    +17

  2. 20+(-9)+(9)

    (a)

    20

    (b)

    29

    (c)

    11

    (d)

    38

  3. Which property is illustrated by the equation:(5×2)+(5×5)=5×(2+5)

    (a)

    commutative

    (b)

    closure

    (c)

    distributive

    (d)

    associative

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

    (a)

    0÷(-7)

    (b)

    20÷(−4)

    (c)

    (-9)÷3

    (d)

    (12)÷5

  5. (−16)÷4 is the same as

    (a)

    -(-16÷4)

    (b)

    −(16)÷(-4)

    (c)

    16÷(-4)

    (d)

    −4÷16

  6. Part - B

    Answer each of the following questions

    5 x 1 = 5
  7. Fill in the blanks
    (i) -80\(\times \)__ =-80

    ()

    1

  8. ____\(\times \) 75=0

    ()

    0

  9.  (−40) ÷____=40

    ()

    -1

  10. 20+80+___=0

    ()

    -100

  11. 75+(-25)=__

    ()

    50

  12. Part - C

    Answer each of the following questions

    5 x 1 = 5
  13. (-675)-(-400)=-1075

    (a) True
    (b) False
  14. (-15)×5=75

    (a) True
    (b) False
  15. (-100)×0×20=0

    (a) True
    (b) False
  16. (−64)÷(-64) IS 0

    (a) True
    (b) False
  17. The sum of two integers can never be zero

    (a) True
    (b) False
  18. Part - D

    Answer each of the following questions

    5 x 1 = 5
  19. For any two integers 72 and 108, 72+108 is an also an integer

  20. (1)

    Closed under addition

  21. For any three integers 68, 25 and 99
    68 × ( 25 + 99) = ( 68 × 25 ) + ( 68x 9

  22. (2)

    Commutative property under multiplication.

  23. 0 + (−138) = (−138) = (−138)+0

  24. (3)

    Distributive property of multiplication over addition

  25. For any two integers (−5) and 10
    (−5) × 10 = 10 ×(−5)

  26. (4)

    Additive identity

  27. 1 × (-1098) = (–1098) = (–1098) × 1

  28. (5)

    Multiplicative identity

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