Rewrite expression without decimal: Rewrite the expression without decimal. 5.4 × 3.72 can be written as 540 × 372 by multiplying both numbers by 100.Multiply whole numbers: Multiply the whole numbers. 540 × 372 = 200880Count decimal places: Count the decimal places in the original expression. 5.4 has one decimal place. 3.72 has two decimal places. 5.4 × 3.72 has 1 + 2 = 3 decimal places in total.Move decimal in product: Move the decimal in the product of whole numbers to find the answer. Move the decimal 3 places to the left in 200880 to account for the three decimal places in the original numbers. 5.4 × 3.72 = 200.880

Grade 6

Multiply and divide decimals by powers of ten

Full solution

5.4 \times 3.72=

Rewrite expression without decimal: Rewrite the expression without decimal. $5.4 \times 3.72$ can be written as $540 \times 372$ by multiplying both numbers by $100$ .
Multiply whole numbers: Multiply the whole numbers. $540 \times 372 = 200880$
Count decimal places: Count the decimal places in the original expression. $\newline$ $5.4$ has one decimal place. $\newline$ $3.72$ has two decimal places. $\newline$ $5.4 \times 3.72$ has $1 + 2 = 3$ decimal places in total.
Move decimal in product: Move the decimal in the product of whole numbers to find the answer. $\newline$ Move the decimal $3$ places to the left in $200880$ to account for the three decimal places in the original numbers. $\newline$ $5.4 \times 3.72 = 200.880$