 # Multiplying Decimals by 10, 100, 1000

In this worksheet, students multiply decimal numbers up to 3 decimal places by 10, 100 and 1000. Key stage:  KS 2

Curriculum topic:   Number: Fractions, Decimals and Percentages

Curriculum subtopic:   Use Three Decimal Places

Difficulty level:   ### QUESTION 1 of 10

In this activity, you will multiply decimal numbers with up to 3 decimal places by 10, 100 and 1000.

Multiplying by 10 moves all digits one place to the left.

Multiplying by 100 moves all digits two places to the left.

Multiplying by 1000 moves all digits three places to the left and so on.

Remember that when a digit moves from the tenths place to the ones place, it hops over the decimal point.

Examples

2.4 × 10 = 24

31.223 × 100 = 3122.3

5.12 × 1000 = 5120

0.4 × 1000 = 400

(In the last two examples we need zeros to fill in the gaps in the columns.)

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Work out:

45.38 × 10

Work out:

45.38 × 100

Work out:

0.238 × 1000

Work out:

101.211 × 10

Work out:

14.384 × 100

Work out:

12.42 × 1000

Work out:

1.234 × 10

Work out:

4.8 × 100

Work out:

8.1 × 1000

Work out:

0.007 × 10

• Question 1

Work out:

45.38 × 10

453.8
EDDIE SAYS
The digits move 1 place to the left.
• Question 2

Work out:

45.38 × 100

4538
EDDIE SAYS
The digits move 2 places to the left.
• Question 3

Work out:

0.238 × 1000

238
EDDIE SAYS
The digits move 3 places to the left.
• Question 4

Work out:

101.211 × 10

1012.11
EDDIE SAYS
The digits move 1 place to the left.
• Question 5

Work out:

14.384 × 100

1438.4
EDDIE SAYS
The digits move 2 places to the left.
• Question 6

Work out:

12.42 × 1000

12420
EDDIE SAYS
The digits move 3 places to the left. An extra zero is needed.
• Question 7

Work out:

1.234 × 10

12.34
EDDIE SAYS
The digits move 1 place to the left.
• Question 8

Work out:

4.8 × 100

480
EDDIE SAYS
The digits move 2 places to the left. An extra zero is needed.
• Question 9

Work out:

8.1 × 1000

8100
EDDIE SAYS
The digits move 3 places to the left. An extra two zeroes are needed.
• Question 10

Work out:

0.007 × 10

0.07
EDDIE SAYS
The digits move 1 place to the left.
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