Decimal Operations

Adding/Subtracting

100

Lila has $5.75 in her wallet. She spends $2.30 on ice cream. How much money does she have left?

$3.45

200

Jake ran 3.25 miles on Monday and 2.75 miles on Tuesday. How many miles did Jake run in total?

6.00 miles

300

A bag of apples weighs 4.8 pounds, and a bag of oranges weighs 3.25 pounds. After using 2.15 pounds of apples for a recipe, how many pounds of fruit are left altogether?

5.90 pounds

400

Sarah had $18.40. She spent $6.75 on lunch and $3.90 on a book. Then her friend gave her $5.00 as a gift. How much money does Sarah have now?

$12.75

500

A carpenter cuts a 12.5-foot-long piece of wood into two smaller pieces. The first piece is 7.85 feet long. Then he uses 2.4 feet from the second piece. How much of the second piece is left?

2.25 feet

Multiply Decimals by Whole Numbers

100

Emma buys 3 pencils, and each pencil costs $1.25. How much does she spend in total?

$3.75

200

A car travels 0.8 miles per minute. How far does it travel in 5 minutes?

4.0 miles

300

Each cupcake costs $2.15. If Jason buys 4 cupcakes, how much does he spend?
Answer:

$8.60

400

A machine fills 3.25 liters of water per minute. How much water will it fill in 6 minutes?

19.50 liters

500

A farmer sells 7 baskets of apples. Each basket weighs 2.75 pounds and costs $4 per pound. How much do the apples weigh in total, and what is the total cost?

Weight: 19.25 pounds
Cost: $77.00

Dividing Decimals by Whole Numbers

100

A rope is 8.4 meters long. If it is cut into 4 equal pieces, how long is each piece?

2.1 meters

200

Samantha has $12.60 and wants to share it equally among 3 friends. How much does each friend get?

$4.20

300

A car travels 15.6 miles in 6 hours. How many miles does it travel per hour?

2.6 miles

400

A baker has 25.2 pounds of flour and uses 7 pounds per batch of cookies. How many batches of cookies can the baker make?

3.6 batches

500

A 17.85-meter-long ribbon is cut into 5 equal pieces. How long is each piece?

3.57 meters

Multiply or Divide Decimals by Decimals

100

1.5×2

3

200

2.4×1.5

3.6

300

3.2×1.8

5.76

400

4.5÷1.5

3

500

14.4÷2.4

6

Scaling

100

Is the product of 1.5×2 greater or less than 2?

The product (3.0) is greater than 2.

200

Is the quotient of 4.8÷1.64 greater or less than 4.8?

The quotient (3.0) is less than 4.8.

300

Is the product of 2.4×1.5 greater or less than 2.4?

The product (3.6) is greater than 2.4.

400

Is the quotient of 6.4÷2.4 greater or less than 6.4?

The quotient (2.67) is less than 6.4.

500

Is the quotient of 4.8÷0.4 greater or less than 4.8? 

The quotient (12) is greater than 4.8.