Test: Decimals I - Ambitious

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Question 1:   Multiply: 81.534 10 4
81534
8153400
8153.4
815340
Question 2:   Multiply: 0.00037 10 8
3.7
37000
370
370000
Question 3:   Divide: 16.4÷ 10 2
164
0.164
1.64
0.0164
Question 4:   Divide: 0.2÷ 10 4
0.00002
0.0002
0.0000002
0.000002
Question 5:   Round 23.4756 to three significant figures
23.5
0.234
23.4
23.475
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