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 Blanks

$0.2+0.5=$  

Fill in the Blanks

$0.3+1.6=$  

Fill in the Blanks

$25.23+12.61=$  

Fill in the Blanks

$11+15.88=$  

Fill in the Blanks

3.45 + 2.78

Fill in the Blanks

6.789 + 4.321

Fill in the Blanks

12.56 + 8.34

Fill in the Blanks

0.75 + 0.125

Fill in the Blanks

15.678 + 3.942

Fill in the Blanks

7.002 + 5.998

Fill in the Blanks

9.87 + 1.14

Fill in the Blanks

23.456 + 12.789

Fill in the Blanks

45.6 + 33.45

Fill in the Blanks

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 Blanks

$0.8\ –\ 0.4\ =$  

Fill in the Blanks

$0.67\ –\ 0.45\ =\$  

Fill in the Blanks

$2.78\ –\ 1.63\ =$  

Fill in the Blanks

$87.56-45.24\ =$  

Fill in the Blanks

$25.73-12.61=$  

Fill in the Blanks

5.67 − 2.45

Fill in the Blanks

10.5 − 3.25

Fill in the Blanks

8.9 − 4.678

Fill in the Blanks

12.34 − 5.678

Fill in the Blanks

20.56 − 13.24

Fill in the Blanks

30.45 − 15.32

Fill in the Blanks

50.75 − 25.678

Fill in the Blanks

100.12 − 50.056

Fill in the Blanks

7.89 − 3.456

Fill in the Blanks

40.5 − 20.25

Do you have any questions? Any clarification?

Fill in the Blanks

The difference of 16.987 and 5.342 is equal to

.

Fill in the Blanks

Increase 27.4578 by 5.783, what is the result?

Fill in the Blanks

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

Fill in the Blanks

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 Blanks

0.2358 + 6.378 + 145.9