🤸‍♀️🪂🤸Addition of Decimals🤸‍♀️🪂🤸

Welcome 👦👧boys and girls to Mathematics class.  Today we will be exploring the topic addition of decimals.

What is Addition?

How do we add Decimals?

Now 👦👧boys and girls let us watch the video clips below to get additional information on addition of decimals.

Click and watch                     Clik and watch                 Click and Watch 

Now 👦👧boys and girls. Here are two examples that will aid you to add decimals.

Hurrah! students👦👧now that we have learnt how to add decimals. It's activities Time.

Task 1:

Complete the activity in your notebooks.

Instructions: Choose the correct answer for each question.

1.     What is 2.3 + 4.1?
a) 6.4
b) 6.04
c) 64
d) 6.5

2.     What is 5.6 + 3.2?
a) 8.8
b) 8.08
c) 88
d) 8.4

3.     What is 7.34 + 2.15?
a) 9.49
b) 9.4
c) 9.9
d) 10.49

4.     What is 12.05 + 3.12?
a) 15.17
b) 15.07
c) 4.17
d) 15.7

5.     What is 0.6 + 0.8?
a) 1.4
b) 0.14
c) 14
d) 0.68

6.     What is 4.56 + 2.44?
a) 7.0
b) 7.00
c) 6.10
d) 6.9

7.     What is 9.9 + 1.1?
a) 10.0
b) 11.0
c) 1.10
d) 10.10

8.     What is 3.25 + 4.75?
a) 8.00
b) 7.00
c) 8.10
d) 7.10

9.     What is 15.6 + 2.4?
a) 18.0
b) 17.0
c) 18.10
d) 17.10

10. What is 0.75 + 0.25?
a) 1.00
b) 1.0
c) 0.100
d) 10.0

11. What is 6.3 + 4.27?
a) 10.57
b) 10.3
c) 10.57
d) 10.57

12. What is 8.15 + 2.8?
a) 10.95
b) 10.23
c) 8.43
d) 10.95

13. What is 14.22 + 5.78?
a) 20.00
b) 19.00
c) 20.10
d) 19.10

14. What is 7 + 2.5?
a) 9.5
b) 7.25
c) 9.05
d) 2.57

15. What is 10.1 + 10.9?
a) 21.0
b) 21.00
c) 20.0
d) 20.10

16. What is 5.05 + 4.95?
a) 10.00
b) 9.10
c) 10.10
d) 9.00

17. What is 23.4 + 16.2?
a) 39.6
b) 39.06
c) 40.6
d) 39.4

18. What is 1.11 + 2.22 + 3.33?
a) 6.66
b) 6.6
c) 6.6
d) 5.66

19. What is 4.12 + 5.88 + 0.5?
a) 10.5
b) 10.50
c) 10.05
d) 9.50

20. Sarah ran 2.5 km on Monday and 3.25 km on Tuesday. How far did she run in total?
a) 5.75 km
b) 5.25 km
c) 5.55 km
d) 6.75 km

Task 2:

Write "True" or "False" for each statement.

1.     When adding decimals, you should line up the digits on the right side.

2.     4.5 + 2.3 = 6.8

3.     Adding zeros at the end of a decimal number changes its value.

4.     The decimal point in the answer should be placed above the decimal points in the problem.

5.     3.25 + 1.75 = 5.00

6.     10 + 0.1 = 1.1

7.     Adding decimals is harder than adding whole numbers.

8.     6.7 + 3.3 = 10.0

9.     2.15 + 3.04 = 5.19

10. It is impossible to get a whole number when adding two decimals.

Instructions: Solve the following problems and write the correct answer in the blank space.

1.     4.2 + 3.7 = _____

2.     6.54 + 2.31 = _____

3.     9.5 + 0.5 = _____

4.     12.36 + 7.64 = _____

5.     0.99 + 0.01 = _____

6.     5.0 + 4.5 = _____

7.     8.23 + 1.77 = _____

8.     3.1 + 4.22 = _____

9.     15.5 + 4.5 = _____

10. 7.65 + 2.35 = _____   

Task 4:   

Students click and do the liveworksheet Activities:

1.Click and do the activity

2. Click and do the activity

3. Click and do the activity

4. Click and do the activity

5. Click and do the activity

Students👦👧hope you have fun learning today.