Decimals and Fractions Practice Test 1

Question : 35 of 40

Marks: +1, -0

What is 3 × 0.3 × 0.03 × 0.003 × 0.0003 × 30 equal to?

Solution:

3 × 0.3 × 0.03 × 0.003 × 0.0003 × 30

=3×3/10×3/100×3/1000×3/10000×30

={9×9×9×10}/{1000×1000×1000×10}

=(9/1000)^3=(0.009)^3

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