Add and Subtract Decimals

Addition and Subtraction of Decimals

Here are several other terms that can be used to describe addition:

1. Sum

2. Total

3. Plus

4. Increased by

5. Added to

6. More than

7. Altogether

8. Combine

9. Gain

10. Join

(+)

Here are several terms that can describe subtraction or a negative result:

1. Difference

2. Minus

3. Subtract

4. Less

5. Decrease

6. Take away

7. Deduct

8. Reduce

9. Withdraw

10. Deficit

​ (-)

Remember

- Always line up the decimal points and fill in any empty space with zeroes

- Add or subtract digits in the same place value position.

- Bring the decimal straight down into the answer

Fill in the Blank

$$0.2+0.5=$$  

Fill in the Blank

$$0.3+1.6=$$  

Fill in the Blank

$$25.23+12.61=$$  

Fill in the Blank

$$11+15.88=$$  

.

Fill in the Blank

3.45 + 2.78

.

Fill in the Blank

6.789 + 4.321

.

Fill in the Blank

12.56 + 8.34

.

Fill in the Blank

0.75 + 0.125

.

Fill in the Blank

15.678 + 3.942

.

Fill in the Blank

7.002 + 5.998

Fill in the Blank

9.87 + 1.14

.

Fill in the Blank

23.456 + 12.789

.

Fill in the Blank

45.6 + 33.45

.

Fill in the Blank

100.25 + 99.75

Multiple Choice

The sum of 2.53 and 4.26 is ___________?

• 6.79

• 6.78

• 6.75

• 5.79

Fill in the Blank

$$0.8\ –\ 0.4\ =$$  

Fill in the Blank

$$0.67\ –\ 0.45\ =\$$  

Fill in the Blank

$$2.78\ –\ 1.63\ =$$  

Fill in the Blank

$$87.56-45.24\ =$$  

Fill in the Blank

$$25.73-12.61=$$  

.

Fill in the Blank

5.67 − 2.45

.

Fill in the Blank

10.5 − 3.25

.

Fill in the Blank

8.9 − 4.678

.

Fill in the Blank

12.34 − 5.678

.

Fill in the Blank

20.56 − 13.24

.

Fill in the Blank

30.45 − 15.32

.

Fill in the Blank

50.75 − 25.678

.

Fill in the Blank

100.12 − 50.056

.

Fill in the Blank

7.89 − 3.456

.

Fill in the Blank

40.5 − 20.25

.

Do you have any questions? Any clarification?

Fill in the Blank

The difference of 16.987 and 5.342 is equal to ____.

.

Fill in the Blank

Increase 27.4578 by 5.783, what is the result?

.

Fill in the Blank

If you take away 45.32 from 890.4568, what is the answer?

.

Fill in the Blank

Combine 23.456 ; 90.354 and 345.1

.

Multiple Choice

234.45 added to the difference of 89.8 and 23.765 is _________.?

• 300.09

• 300.485

• 300.45

• 300.765

Multiple Choice

Before the Enhanced Community Quarantine, the weight of Ana is 56.3kilograms. By

staying at home for 1 month, her weight becomes 59.5 kg. How much weight did she gain

after the ECQ?

• 3.3

• 3.4

• 3.2

• 3.6

Fill in the Blank

0.2358 + 6.378 + 145.9

.