🤸♀️🪂🤸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 = _____
1.
Maria went to the supermarket with a $20.00 bill. She bought a bag of rice for
$4.75, a carton of milk for $3.25, and a pack of chicken for $7.50.
Question: How much did Maria spend in total? Does she have enough
money to buy a $5.00 box of cookies as well? Explain why or why not.
2.
In a 400-meter relay race, four runners on a team each run a part of the race.
- Runner
1 ran 98.6 meters.
- Runner
2 ran 101.3 meters.
- Runner
3 ran 99.2 meters.
- Runner
4 ran 100.9 meters.
Question: What is the total distance the team ran? Did the team complete the full 400-meter race? If not, how many more meters do they need?
3.
David is saving his allowance to buy a new video game that costs $55.00.
- In
week 1, he saved $12.50.
- In
week 2, he saved $15.75.
- In
week 3, he saved $10.25.
Question: How much money has David saved in total after 3 weeks? How much more money does he still need to save to buy the game?
4.
Mr. Green is building a fence around his garden. He needs four pieces of wood
for the four sides.
- Side
A is 2.8 meters long.
- Side
B is 4.2 meters long.
- Side
C is 2.8 meters long.
- Side
D is 4.2 meters long.
Question: What is the total length of wood Mr. Green needs? If wood is sold in whole meters only, how many whole meters must he buy to have enough?
5.
In a school baking competition, three students measured the mass (weight) of
their cakes.
- Lisa’s
cake weighed 1.25 kg.
- Mark’s
cake weighed 0.75 kg.
- Tina’s
cake weighed 1.50 kg.
Question: What is the combined mass of all three cakes? If the competition rule says the total mass must not exceed 4.00 kg, are the students qualified? By how much are they under or over the limit?
6.
Three Grade 6 classes collected money for a charity.
- Class
6A collected $45.60.
- Class
6B collected $32.75.
- Class
6C collected $28.40.
The charity needs a total donation of $100.00 to reach its goal.
Question: How much money did the three classes collect together? Did they reach the charity's $100.00 goal? How much more or less do they have than the goal?
Students👦👧hope you have fun learning today.
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