Subtracting numbers in standard form | Quizalize

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Subtracting numbers in standard form

Quiz by Oak National Academy: GCSE Maths Foundation (2)

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Q 1/6
Score 0
Work out $9.8\times10^5 - 6.8\times10^5$ , giving your answer in standard form.
30
$3\times10^5$
$3\times10^{10}$
$3\times10^{9}$
$3\times10^7$
Q 2/6
Score 0
Work out $3\times10^{-8} - 1.8\times10^{-8}$ , giving your answer in standard form.
30
$1.2\times10^{-8}$
$1.2\times10^{-9}$
$1.2\times10^{0}$
$1.2\times10^{-16}$

6 questions

Q.

Work out

9.8\times10^5 - 6.8\times10^5

, giving your answer in standard form.

1

30 sec

Q.

Work out

3\times10^{-8} - 1.8\times10^{-8}

, giving your answer in standard form.

2

30 sec

Q.

Work out

2.4\times10^7  - 3\text{ } 700\text{ }000

, giving your answer in standard form.

3

30 sec

Q.

Work out

4.9\times10^6- 280\text{ }000

, giving your answer in standard form.

4

30 sec

Q.

Work out

9.38 \times 10^{10} -  1 \text{ } 300 \text{ } 000 \text{ } 000

. Give your answer in standard form.

5

30 sec

Q.

9

mm −

0.5

cm −

2\times10^{-3}

m = ______ metres.

6

30 sec

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