Discussion
0.012 ÷ 1.5 = ?
Answer: A
The answer is 0.008.
Multiply both numbers by 10 to make the divisor a whole number:
\[ \begin{aligned} 0.012 \div 1.5 &= 0.12 \div 15 \\ &= 0.008 \end{aligned} \]
Check: \(1.5 \times 0.008 = 0.012\). 0.08 and 0.8 put the decimal point one and two places too far right, which happens if the shift is made in only one of the two numbers.
An alternative is to write both as fractions: 12/1000 divided by 15/10 is 12/1000 times 10/15, which is 120/15000, or 8/1000.
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