Test: Decimals I - Challenging

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Question 1:   Multiply: 11.115 10 7
1,111,500
11,115,000,000
111,150,000
11,115,000
Question 2:   Multiply: 0.0065 10 5
6500
65
650
6.5
Question 3:   Divide: 0.07654: 10 3
0.007654
0.000007654
0.00007654
0.0007654
Question 4:   Simplify: 10 8 : 10 6 10 2 : 10 3
10
100
1000
0.01
Question 5:   Multiply: 657.148 10 7
0.000657148
0.0000657148
657148
6571480000
Question 6:   Divide: 0.02365: 10 3
23.65
0.00002365
0.0002365
2.365
Question 7:   Round 0.0456 to 2 significant figures
0.05
0.045
0.046
0.04
Question 8:   Round to 4 decimal places: 1.0249149
1.0250
1.0249
1.025
1.024
Question 9:   Round to 4 significant figures: 0.0456
0.0455
0.04560
0.0456
0.046
Question 10:   Convert 3 17 to decimal form and round to 4 decimal places
0.1760
0.1764
0.1766
0.1765