# Decimal Multiplication Word Problems

Decimal Multiplication Word Problems
• Page 1
1.
Find the product of 2.2 and 4.2.
 a. 92.4 b. 9240 c. 924 d. 9.24

#### Solution:

2.2 × 4.2
[Write the expression.]

So, the product of 2.2 and 4.2 is 9.24.

2.
Find the product of 6.8 and 5.6.
 a. 3.808 b. 38.08 c. 380.8 d. 3808

#### Solution:

6.8 × 5.6
[Write the expression.]

So, the product of 6.8 and 5.6 is 38.08.

3.
Find the product of 8.6 and 65.
 a. 5.59 b. 559 c. 5590 d. 55.9

#### Solution:

8.6 × 65
[Write the expression.]

So, the product of 8.6 and 65 is 559.

4.
Find the product of 9.1 and 54.
 a. 49.14 b. 4914 c. 4.914 d. 491.4

#### Solution:

9.1 × 54
[Write the expression.]

So, the product of 9.1 and 54 is 491.4.

5.
Multiply 3.2 by 42.
 a. 13.44 b. 134.4 c. 12.44 d. 1.344

#### Solution:

3.2 × 42
[Write the expression.]

6.
Identify a number sentence that describes the model.

 a. 0.3 × 0.6 b. 0.03 × 0.06 c. 0.4 × 0.6 d. 0.6 × 0.5

#### Solution:

0.3 can be shown as

0.6 can be shown as

0.3 × 0.6 can be shown as

So, the number sentence is 0.3 × 0.6.

7.
Identify the model for 0.4 × 0.5.

 a. Model 4 b. Model 3 c. Model 2 d. Model 1

8.
Identify a number sentence that describes the model.

 a. 0.2 × 0.6 b. 0.4 × 0.6 c. 0.02 × 0.06 d. 0.6 × 0.6

9.
Irena makes $7.25 an hour. How much money does she make in 4.8 hours?  a.$34.80 b. $36.08 c.$12.05 d. $3.48 #### Solution: Money that Irena makes in one hour =$7.25

Money that Irena makes in 4.8 hours = 4.8 × 7.25

So, Irena makes \$34.80 in 4.8 hours.

10.
Find the product of 1.11 and 1.11.
 a. 1.2321 b. 1.3321 c. 1.2421 d. 1.1321

#### Solution:

1.11 and 1.11
[Original decimals.]

1.11
×   1.11
.....................
111
111
+ 111
.....................
1.2321
.....................

[2 decimal places.]
[2 decimal places.]

[4 decimal places.]

The product of 1.11 and 1.11 is 1.2321.