Term 1 Model Questions

7th Standard EM

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Maths

Time : 01:30:00 Hrs
Total Marks : 60
    5 x 1 = 5
  1. Identify the problem with negative numbers as its answer:

    (a)

    -9+(-5)+6

    (b)

    8+(-12)-6

    (c)

    -4+2+10

    (d)

    10+9-4)+8

  2. (-2)×−(-9)=_____

    (a)

    108

    (b)

    -108

    (c)

    +1

    (d)

    -1

  3. The numerical co-efficient of −7mn is

    (a)

    7

    (b)

    -7

    (c)

    p

    (d)

    -p

  4. If Mani buys 5kg of potatoes for Rs.75 then he can buy ______kg of potatoes for Rs.105.

    (a)

    6

    (b)

    7

    (c)

    8

    (d)

    5

  5. The sum of all angles at a point is

    (a)

    360°

    (b)

    180°

    (c)

    90°

    (d)

  6. 5 x 1 = 5
  7. ____\(\times \) 75=0

    ()

    0

  8. The addition of −7b and 2b is __________

    ()

    –5b

  9. If a = 5, the value of 2a + 5 is _____

    ()

    15

  10. A car travels 60 km with 3 liters of petrol. If the car has to cover the distance of 200 km, it requires _______ liters of petrol.

    ()

    10 litres

  11. Draw a tetromino which passes symmetry ...................

    ()

  12. 5 x 1 = 5
  13. (-45)-(-8)=(-8)-(-45)

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

    (a) True
    (b) False
  15. The co-efficient of ab in the term 15abc is 15.

    (a) True
    (b) False
  16. If x is a natural number, then x + 1 is its predecessor.

    (a) True
    (b) False
  17. Number of students in a hostel and consumption of food are not in direct proportion.

    (a) True
    (b) False
  18. 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. 0 + (−138) = (−138) = (−138)+0

  22. (2)

    Additive identity

  23. 1 × (-1098) = (–1098) = (–1098) × 1

  24. (3)

  25. (4)

  26. (5)

    Multiplicative identity

    5 x 2 = 10
  27. Add the following
    (i) 8 and –12 using number line
    (ii) (–3) and (–5) using number line
    (iii) (-100+(-10)  
    (iv) 20+(-72)
    (V) 82+(-75) 
    (VI) -48+(-15)
    (VII) -225+(-63)

  28. If P=-15 and Q=5 find (P-Q)+(P+Q)

  29. The price of an item x increases by Rs. 10 every year and an item y decreases by Rs. 15 every year. If in 2018, the price of x is Rs. 50 and y is Rs. 90, then which item will be costlier in the year 2020.

  30. The area of a rhombus is 100 sq. cm and length of one of its diagonals is 8 cm. Find the length of the other diagonal

  31. If x = 2 and y = 3, then find the value of the following expressions
    (i) 2x − 3y
    (ii) x + y
    (iii) 4y − x
    (iv) x + 1 − y

  32. 5 x 3 = 15
  33. Add: (i) (–70) and (–12) (ii) 103 and 39.

  34. A parallelogram has adjacent sides 12 cm and 9 cm. If the distance between its shorter sides is 8 cm, find the distance between its longer side

  35. If x = 3, y = 2 find the value of
    (i) 4x + 7y
    (ii) 3x + 2y − 5
    (iii) x − y

  36. If \(\angle\)POQ = 23° and \(\angle\)POR = 62° then find \(\angle\)QOR

  37. A telephone exchange worker wants to give the telephone connection to Amutha's house. Shows all the possibilities of cable connections. Find the route which requires minimum cable?

  38. 3 x 5 = 15
  39. Find the value of :(i) (-11) - (-33)  (ii) (-90)-(-50)

  40. Simplify:100x + 99y – 98z + 10x + 10y + 10z – x – y + z

  41. Construct bisector of the ∠ABC with the measure 80°.

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