**Symbols are used for multiplication and division** in mathematical equations. The x denotes multiplication and the ÷ denotes division. This 11-plus Maths quiz is the first in our series of difficult quizzes on multiplication and division. Remember to look at all four answers before making your choice. Here's a reminder of two useful tips:

- To multiply a number by another number which is a multiple of 10 and whose only non zero digit is the leading digit 1: move the decimal point (d.p.) to the right by the same number of zeros that are in the multiple of 10. Note: whole numbers that do not have decimal parts are written without a decimal point e.g. 400.0 = 400: in such cases the d.p. is not normally needed.
- To divide a number by another number which is a multiple of 10 and whose only non zero digit is the leading digit 1: move the decimal point (d.p.) to the left by the same number of zeros that are in the multiple of 10.

1.

What is the correct answer to the given calculation?

18.56 × 100 = ?

18.56 × 100 = ?

0.1856

185.6

1,856

18,560

TIP 1. Move the d.p. 2 places to the right to give 1,856

2.

What is the correct answer to the given calculation?

2,500 ÷ 1,000 = ?

2,500 ÷ 1,000 = ?

0.25

2.5

25

250

TIP 2. 2,500 = 2,500.0 Move the d.p. 3 places to the left to give 2.5

3.

What is the correct answer to the given calculation?

199.09 × 1,000 = ?

199.09 × 1,000 = ?

19,909

199,090

0.19909

1,990,900

TIP 1. Move the d.p. 3 places to the right to give 199,090

4.

What is the correct answer to the given calculation?

0.124 ÷ 100 = ?

0.124 ÷ 100 = ?

12.4

1.24

0.00124

0.0124

TIP 2. Move the d.p. 2 places to the left to give 0.00124

5.

What is the correct answer to the given calculation?

10,000 × 100 = ?

10,000 × 100 = ?

10,000,000

10,000

100,000

1,000,000

TIP 1. 10,000 = 10,000.0 Move the d.p. 2 places to the right to give 1,000,000

6.

What is the correct answer to the given calculation?

250,000 ÷ 10,000 = ?

250,000 ÷ 10,000 = ?

25,000

2,500

250

25

TIP 2. 250,000 = 250,000.0 Move the d.p. 4 places to the left to give 25

7.

What is the correct answer to the given calculation?

123.608 × 100 = ?

123.608 × 100 = ?

123,608

1,236.08

12,360.8

1.23608

TIP 1. Move the d.p. 2 places to the right to give 12,360.8

8.

What is the correct answer to the given calculation?

1.11 ÷ 100 = ?

1.11 ÷ 100 = ?

111

0.0111

0.00111

11.1

TIP 2. Move the d.p. 2 places to the left to give 0.0111

9.

What is the correct answer to the given calculation?

7.777 × 100 = ?

7.777 × 100 = ?

777.7

7,777

77.77

0.07777

TIP 1. Move the d.p. 2 places to the right to give 777.7

10.

What is the correct answer to the given calculation?

34,567 ÷ 10,000 = ?

34,567 ÷ 10,000 = ?

3.4567

3,456.7

0.34567

0.034567

TIP 2. 34,567 = 34,567.0 Move the d.p. 4 places to the left to give 3.4567