Operations with Decimals

Addition/Subtraction

100

3.4 + 2.1

What is 5.5

200

5.75 + 1.2

What is 6.95

300

6.45 + 7.89 

What is 14.34

400

23.43 + 76.48 

What is 99.91 

500

116.24 + 26.98 

What is 143.22

Multiplication

100

0.2 x 0.3

What is 0.06

200

0.4 x 1.2

What is 0.48

300

1.4 x 1.6 

What is 2.24

400

3.24 x 1.2 

What is 3.888

500

0.26 x 0.2 

What is 0.052

Division

100

0.8 ÷ 0.2 

What is 4 

200

0.24 ÷ 0.12

What is 2 

300

2.4 ÷ 0.08 

What is 30

400

0.84 ÷ 0.12

What is 7

500

1.56 ÷ 1.3 

What is 1.2

Fix The Mistake

100

Fix the mistake: 3.4 + 2.1 = 5.6

What is 5.5

200

Fix the mistake: 5.7 − 2.4 = 2.4

What is 3.3

300

Fix the mistake: 0.36 × 0.5 = 0.16

What is 0.18

400

Fix the mistake: 1.56 ÷ 1.3 = 0.12

What is 1.2

500

Fix the mistake: 0.25 × 0.48 = 0.12

Trick question!

Problem Solving

100

A bottle holds 0.75 L of juice. How much juice is in 4 bottles?

What is 3L? 

200

A ribbon is 2.4 m long. If you cut it into 6 equal pieces, how long is each piece?

What is 0.4m?

300

A bag of sugar weighs 1.25 kg. How much do 8 bags weigh?

What is 10kg? 

400

A car travels 4.8 km on 0.6 L of fuel. How many kilometers can it travel on 1 L of fuel?

What is 8km per litre?

500

Sara buys 3.5 kg of apples. Each kg costs $2.40. She gives the cashier $10. How much change does she get?

What is $1.60 in change?