(Q.1) Write the following integers in
decreasing order:
-10, 1, -3, -7, 9, 2, -4, 5
-10, 1, -3, -7, 9, 2, -4, 5
(Q.2) (i)
The sum of two integers is – 70. If one integer is 47, find the other integer.
(ii) The sum of two integers is 177. If one integer
is – 89, find the other integer.
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(Q.3) Subtraction
of 14 from the sum of –12 and 28 gives
(A) 1. (B) 2. (C) 3. (D) 4. |
(1Mark)
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(Q.4) Addition
of 15 to the sum of –18 and 28 gives
(A) 10. (B) 20. (C) 25. (D) 40. |
(1Mark)
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(Q.5) The
sum of -32 + (-21) + 4 is
(A) -57. (B) -49. (C) 49. (D) 57. |
(1Mark)
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(Q.6) The
lengths of the sides of a triangle are consecutive odd integers. If the
perimeter is 51, then the length of the longest side is
(A) 15. (B) 17. (C) 19. (D) 22. |
(1Mark)
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(Q.7) Predecessor
of -199 is
(A) -200. (B) -198. (C) 199. (D) 200. |
(1Mark)
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(Q.8) Using the number line, write the
integer which is
(a) 5 more than –2
(b) 4 less than 2
(a) 5 more than –2
(b) 4 less than 2
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(Q.9) The
product of (-3)
 (-5) (-8) 6 is(A) -710. (B) -720. (C) 710. (D) 720. |
(1Mark)
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(Q.10) The
value of 1 + 3 - 5 + 7 - 9 + 11 - 13 is
(A) -7. (B) -6. (C) -5. (D) -4. |
(1Mark)
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(Q.11) On
subtracting -17 from -25, we get -
(A) 8 (B) -8 (C) 7 (D) -7 |
(1Mark)
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(Q.12) How
much is 3a – 9b greater than 7a – 6b?
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(Q.13) Sheena
has some chocolates. Her friend Rita has 3 more than twice the chocolates
Sheena has. How many chocolates do they both have?
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(Q.14) What
must be added to 7x + 2 to get 14x - 6?
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(Q.15) Simplify the equation.
5(3x – 2) – (x – 16) = 2(4x – 3) |
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(Q.16) If
a = 7 and b = 2, find the value of 4a2 + ab – 7b + a.
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(3Marks)
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(Q.17) Find
the sum of 6xy2, 2xy2 and -5xy2.
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(Q.18) Subtract
7x from (13x + 2y).
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(Q.19) Find
the product: 6y2 and 5yz3.
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(Q.20) Subtract
7y2 from -2y2.
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(Q.21) If
14 – x = 24, find the value of x.
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(Q.22) Add
(6c + 5) + 3c.
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(Q.23) Simplify: (3a – 9b) (7a – 6b)
