Question

when multiplying decimals_______the product first

Answer 1

1. When multiplying desimals, estimate the product first.

2. This will help you place the decimal point in the product.

3. Last check to see if your answer is correct.

$(3.78)\cdot(4.1)$

estimate the product without the decimals

$(378)\cdot(41)=15498$

count the number of decimal places there are on both numbers

$\begin{gathered} 3.78\Rightarrow2 \\ 4.1\Rightarrow1 \end{gathered}$

there are 3 decimal places in the product, move the decimal place from right to left as many decimal places you found.

$(3.78)\cdot(4.1)=15.498$