Understand the problem: Understand the problem. We need to multiply 15.2 (a decimal number) by 3 (an integer).Set up the multiplication: Set up the multiplication. Write the numbers in a multiplication format. 15.2 × 3Multiply the numbers: Multiply the numbers. Since 3 is an integer, we can multiply it directly with the decimal number. 15.2 × 3 = 45.6Check for errors: Check for errors. Recheck the multiplication to ensure there are no mistakes. 3 times 2 is 6, 3 times 5 is 15 (write down 5 and carry over 1), and 3 times 1 plus the carried over 1 is 4. The decimal point is placed correctly. Therefore, the multiplication is correct.

Grade 6

Multiply whole numbers

Full solution

152

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3

Understand the problem: Understand the problem. $\newline$ We need to multiply $15.2$ (a decimal number) by $3$ (an integer).
Set up the multiplication: Set up the multiplication. Write the numbers in a multiplication format. $15.2 \times 3$
Multiply the numbers: Multiply the numbers. $\newline$ Since $3$ is an integer, we can multiply it directly with the decimal number. $\newline$ $15.2 \times 3 = 45.6$
Check for errors: Check for errors. $\newline$ Recheck the multiplication to ensure there are no mistakes. $\newline$ $3 \times 2$ is $6$ , $3 \times 5$ is $15$ (write down $5$ and carry over $1$ ), and $3 \times 1$ plus the carried over $1$ is $4$ . The decimal point is placed correctly. Therefore, the multiplication is correct.