Estimate and exact

A) estimate 0.34 x 0.063 by rounding both numbers to one significant figure
b) work out the exact value of 0.34 x 0.063
compare answers to parts a) and b)

Correct answer:

a =  0.018
b =  0.0214

Step-by-step explanation:

$$\begin{gathered} x=0.34 \\ y=0.063 \\ X=0.3 \\ Y=0.06 \\ a=X\cdot Y=0.3\cdot 0.06=0.018 \end{gathered}$$

$b=x\cdot y=0.34\cdot 0.063=0.0214$

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