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iGCSE (2021 Edition)

3.05 Multiplying with decimals

Interactive practice questions

Consider the following multiplications, and state whether the answer is greater than both numbers, less than both numbers, or has a value in between the two numbers.

a

$3\times5$3×5

Greater than both numbers.

A

Less than both numbers.

B

In between the two numbers.

C
b

$3\times0.5$3×0.5

Greater than both numbers.

A

Less than both numbers.

B

In between the two numbers.

C
c

$0.3\times0.5$0.3×0.5

Greater than both numbers.

A

Less than both numbers.

B

In between the two numbers.

C
d

Hence, when is the product of two numbers always in between the two numbers?

When both numbers are greater than $1$1.

A

When both numbers are less than $1$1.

B

When only one of the numbers is less than $1$1.

C
e

When is the product of two numbers always less than both numbers?

When both numbers are less than $1$1.

A

When only one of the numbers is less than $1$1.

B

When both numbers are greater than $1$1.

C
Easy
1min

Calculate the following products.

Easy
< 1min

Find $0.6\times0.3$0.6×0.3, giving your answer as a decimal.

Easy
< 1min

Find $2.2\times4$2.2×4, giving your answer as a decimal.

Easy
< 1min
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Outcomes

0580C1.8B

Use the four rules for calculations with decimals, including correct ordering of operations and use of brackets.

0580E1.8B

Use the four rules for calculations with decimals, including correct ordering of operations and use of brackets.

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