How to Multiply a Whole Number and a Decimal | Math with Mr. J

When multiplying a whole number and a decimal, how do you determine where to place the decimal point in the final answer?

• Count the total number of digits in both numbers.

• Count the number of digits to the left of the decimal point in the decimal number.

• Count the number of digits to the right of the decimal point in the decimal number.

• Place the decimal point in the middle of the answer.

What is the product of 8 and 0.4?

• 0.32

• 3.2

• 32

• 0.032

What is the product of 16 and 5.72?

• 9.152

• 91.52

• 915.2

• 9152

What is the correct order of steps to multiply a whole number and a decimal?

• 1) Multiply, 2) Remove decimals, 3) Place the decimal

• 1) Place the decimal, 2) Remove decimals, 3) Multiply

• 1) Remove decimals, 2) Multiply, 3) Place the decimal

• 1) Remove decimals, 2) Place the decimal, 3) Multiply

What is the product of 7 and 0.35?

• 2.45

• 24.5

• 0.245

• 245

What is 23 multiplied by 4.9?

• 11.27

• 112.7

• 1.127

• 1127

Find the product of 64.51 and 8.

• 51.608

• 5160.8

• 516.08

• 5.1608