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Multiplying decimals by whole numbers worksheet. To multiply a decimal by a whole number, just ignore the decimal point and multiply like normal! Then, bring the decimal point back for the answer.

1.
Name: ____________________ Date: _____________________

Concept: Worksheet (5) Grade: Four / Section: “A, B”

Concept: Worksheet (1) Mathematics

Grade: Three / Section: “A, B”

Chapter :Decimal Numbers Lesson : Multiplying Decimals

To multiply decimal numbers:

1. Multiply the numbers just as if they were whole numbers.

Line up the numbers on the right - do not align the decimal points.

Starting on the right, multiply each digit in the top number by each

digit in the bottom number, just as with whole numbers.

Add the products.

2. Place the decimal point in the answer by starting at the right and

moving a number of places equal to the sum of the decimal places in

both numbers multiplied.

Concept: Worksheet (5) Grade: Four / Section: “A, B”

Concept: Worksheet (1) Mathematics

Grade: Three / Section: “A, B”

Chapter :Decimal Numbers Lesson : Multiplying Decimals

To multiply decimal numbers:

1. Multiply the numbers just as if they were whole numbers.

Line up the numbers on the right - do not align the decimal points.

Starting on the right, multiply each digit in the top number by each

digit in the bottom number, just as with whole numbers.

Add the products.

2. Place the decimal point in the answer by starting at the right and

moving a number of places equal to the sum of the decimal places in

both numbers multiplied.

2.

3.
Exercise 1 :

Write in vertical form then multiply:

a) 45.1 x 4 = ____ b) 6.21 x 5 = ____ c) 7.29 x 37 = ____

d) 16.16 x 1.4 = ___ e) 9.22 x 4.8 = _____ f) 0.56 x 0.8 = ____

Problem Solving:

A. Sara ran 5.85 miles each day for 9 days.

How many miles did she run altogether?

_________________________________

B. Ali saves $7.82 per week.

After 12 weeks, how much money will he have saved?

____________________________________

Write in vertical form then multiply:

a) 45.1 x 4 = ____ b) 6.21 x 5 = ____ c) 7.29 x 37 = ____

d) 16.16 x 1.4 = ___ e) 9.22 x 4.8 = _____ f) 0.56 x 0.8 = ____

Problem Solving:

A. Sara ran 5.85 miles each day for 9 days.

How many miles did she run altogether?

_________________________________

B. Ali saves $7.82 per week.

After 12 weeks, how much money will he have saved?

____________________________________

4.
Answer Key

Exercise 1 :

Write in vertical form then multiply:

g) 45.1 x 4 = _____ h) 6.21 x 5 = ____ i) 7.29 x 37 = ____

180.4 31.05 269.73

j) 16.16 x 1.4 = ___ k) 9.22 x 4.8 = _____ l) 0.56 x 0.8 = ____

22.624 44.256 0.448

Problem Solving:

C. Sara ran 5.85 miles each day for 9 days.

How many miles did she run altogether?

5.85 x 9 = 52.65 miles

D. Ali saves $7.82 per week.

After 12 weeks, how much money will he have saved?

7.82 x 12 = 93.84 $

Exercise 1 :

Write in vertical form then multiply:

g) 45.1 x 4 = _____ h) 6.21 x 5 = ____ i) 7.29 x 37 = ____

180.4 31.05 269.73

j) 16.16 x 1.4 = ___ k) 9.22 x 4.8 = _____ l) 0.56 x 0.8 = ____

22.624 44.256 0.448

Problem Solving:

C. Sara ran 5.85 miles each day for 9 days.

How many miles did she run altogether?

5.85 x 9 = 52.65 miles

D. Ali saves $7.82 per week.

After 12 weeks, how much money will he have saved?

7.82 x 12 = 93.84 $