Free Printable REVISION

1.

What is the only two digit prime number greater than 90?

(a)

2.

What is the only even prime number?

(a)

3.

Round off both 91 and 19 to 1 significant figure, then find the difference between the two approximate values.

a)

70

b)

72

c)

80

d)

100

4.

Express $\frac{9}{11}$ as a decimal, correct to 5 significant figures.

a)

0.8181

b)

0.8182

c)

0.818 18

d)

0.818 19

5.

0.049 9 =

a)

0.05 (correct to 2 significant figures).

b)

0.05 (correct to 3 significant figures).

c)

0.050 (correct to 2 significant figures).

d)

0.050 (correct to 3 significant figures).

6.

Coey wants to buy three items of prices $71, $52 and $79. At least how many $100 banknotes should Coey bring to buy all the items needed?

a)

2

b)

3

c)

4

d)

5

7.

Alan buys 8 bottles of milk for the unit price between $7 and $12. Which of the following CANNOT be the total price of the milk?

a)

$56.5

b)

$64.5

c)

$80.5

d)

$96.5

8.

By rounding up each number to the nearest integer, estimate the value of

−53.4 + 20.7 + 73.6 − 55.3 + 25.8.

a)

13

b)

12

c)

11

d)

10

9.

By rounding off each number to the nearest ten, estimate the value of

812 + 659 − 107 + 521 − 226.

a)

1659

b)

1660

c)

1650

d)

1700

10.

If the approximate value of 759 is 760, which of the following methods may be used in the estimation?

I. Rounding off

II. Rounding up

III. Rounding down

a)

I only

b)

II only

c)

I and II only

d)

I and III only

11.

A prime number is...

a)

a number that has only one factor.

b)

a number that has at least two factors.

c)

a number that has more than two factors.

d)

a number that has only two factors.
(1 and itself)

12.

Write 36 as the product of it's prime factors...

a)

2 x 2 x 3 x 3

b)

2 x 2 x 2 x 3

c)

2² x 3²

d)

2² x 3

13.

Find the HCF of 30 and 36

a)

2

b)

3

c)

4

d)

6

14.

Find the HCF of 45 and 60

a)

5

b)

15

c)

10

d)

9

15.

What is the LCM of 18 and 20?

a)

2

b)

10

c)

90

d)

180

16.

44/-4=

(a)

17.

(-2)(-11)

(a)

18.

22 ÷ (-2)

(a)

19.

677 + (-798)

(a)

20.

-265 + 593

(a)

21.

-67 + -80

(a)

22.

What is the result of adding -1/2 and 3/4?

a)

-1/4

b)

5/8

c)

1/4

d)

2/3

23.

Solve:

\left(-3\right)^3

(a)

24.

Order the integers from least to greatest. 4, –4, –2, 2, –8

a)

4, - 4, - 2, 2, - 8

b)

4, 2, - 2, - 4, - 8

c)

- 8, - 4, - 2, 2, 4

d)

8, 2, - 24, - 4

25.

Zero is neither positive nor negative.

a)

False

b)

True

26.

a)

a⁷

b)

a¹

c)

1/a¹²

d)

a¹²

27.

36a⁸b⁷÷ 30ab³

a)

5/6 a⁸b⁴

b)

6/5 a⁷b³

c)

6/5 a³b⁷

d)

5/6 a⁷b³

28.

6a⁵÷ 2a²

a)

3a³

b)

12a³

c)

4a¹⁰

d)

2a⁷

29.

a⁷×a⁴÷a⁵

a)

a⁷

b)

a⁶

c)

a⁴

d)

a¹¹

30.

Find a^-80 ÷ a⁸

a)

a^-88

b)

a¹⁰

c)

a⁸⁸

d)

a^-72

31.

Simplify: 4x²y × 9xy²

a)

36x³y³

b)

36xy³

c)

13x²y²

d)

13x³y³

32.

Simplify: χ³ ÷ χ²

a)

χ

b)

χ⁵

c)

χ⁶

d)

χ^-1

e)

1/χ

33.

q⁶ x q ^-6

a)

q¹

b)

q²

c)

q¹²

d)

1

34.

If a = 6 and b = 7,find the value of 15-a-b.

a)

2

b)

3

c)

4

d)

5

35.

If y = 7, find the value of 2(y+4).

a)

11

b)

22

c)

20

d)

12

36.

If $x=5$ , find $\frac{x+3}{4}$

a)

$\frac{53}{4}$

b)

$2$

c)

$4$

d)

$8$

37.

If $y=4$ , find $2y+3$

a)

27

b)

11

c)

12

d)

9

38.

Work out the value of the following expressions when a = 3 and b = 4

3ab

a)

10

b)

12

c)

15

d)

36

39.

y = 3 - x

x = 2y

y =

a)

0

b)

1

40.

y = 5x + 6

x = 2

y = ?

a)

14

b)

15

c)

16

d)

17

REVISION

Total questions: 40

Worksheet time: 34mins

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