Test: Decimals I - Challenging

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Question 1:   Multiply: 11.115 10 7
11,115,000
1,111,500
111,150,000
11,115,000,000
Question 2:   Multiply: 0.0065 10 5
650
6.5
65
6500
Question 3:   Divide: 0.07654: 10 3
0.00007654
0.0007654
0.000007654
0.007654
Question 4:   Simplify: 10 8 : 10 6 10 2 : 10 3
0.01
10
1000
100
Question 5:   Multiply: 657.148 10 7
0.0000657148
0.000657148
6571480000
657148
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