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Mental Maths Formal Assessment 1

Total questions: 20

Worksheet time: 2hrs 22mins

Name
Class
Date
1.

900×90

a)

72 000

b)

81 000

c)

71 000

d)

63 000

2.

If I double a number and then multiply that answer by 4, my final answer is

1 280 . What number did I start with?

(a)  

3.

How many centimetres in twelve metres?

a)

12 000 cm

b)

1 200 cm

c)

120 cm

d)

12 cm

4.

What fraction of the circle is shaded?

a)

 812\frac{8}{12} 

b)

 610\frac{6}{10} 

c)

 12\frac{1}{2} 

5.

 58   \frac{5}{8}\ \ \   of   248 = 

(a)  

6.

What is the simplest form of the fraction  1827\frac{18}{27}  ?

a)

 69\frac{6}{9}  

b)

 914\frac{9}{14}  

c)

 23\frac{2}{3}  

7.

There are 33 biscuits in a bag. The dog ate one third of them. How many biscuits are left in a bag?

a)

22 biscuits

b)

19 biscuits

c)

10 biscuits

d)

11 biscuits

8.

I purchase 2 shirts for R 250 each; a pair of pants for R 320 and a Pair of shoes for R 735. How much change do I get if I pay R 2000?

(a)  

9.

4 826 - 6 322 ÷ 2

(a)  

10.
99 =
a)
(9 x 10) + (9 x 9)
b)
(9 x 9) + (9 x 2)
c)
(9 x 10) + (9 x 2)
d)
(9 x 10) + (9 x 1)
11.

Which statements are correct? The number 7 651 contains:

a)

6 tens

b)

1 unit

c)

765 tens

d)

7 TTh

12.

583 = 400 + ? +13

(a)  

13.

The largest 4 digit number minus the smallest 4 digit number =

a)

8999

b)

9899

c)

9000

d)

9900

14.

The number which lies exactly halfway between 24 & 76 is...

a)

38

b)

50

c)

45

d)

55

15.

Calculate the sum of 23 ; 4 072 ; 6T and

3 559

(a)  

16.

What is the shaded fraction?

a)

14\frac{1}{4}

b)

67\frac{6}{7}

c)

35\frac{3}{5}

d)

26\frac{2}{6}

17.

Which of the following 3-D shapes is a triangular based pyramid?

a)
b)
c)
d)
18.

The unit used to measure length of a soccer field is

a)

km

b)

mm

c)

cm

d)

m

19.

What is the number value of the 4 in

49 632

a)

4 Th

b)

ten thousands

c)

40 000

d)

4000

20.

In the number 87 906, what number is in the thousands place?

a)

8

b)

6

c)

7

d)

9