Lesson Example Discussion Quiz: Class Homework |
Step-3 |
Title: Addition of decimals |
Grade: 4-a Lesson: S2-L4 |
Explanation: Hello Students, time to practice and review the steps. Let us take next 2-5 minutes to solve the steps for the problems. This is a good exercise to check your understanding of the concepts.Second student to identify and review important steps.Focus on understanding the concepts and application to solving problems step by step. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Addition of decimals 172.3 + 136.7. |
|
2 |
Hint |
Operator used for addition is \$+\$ |
|
3 |
Step |
Add the numbers |
172.3 + 136.7 |
4 |
Step |
After the addition we get |
309 |
5 |
Choice.A |
This option is incorrect because it is much larger than the actual sum. It suggests an error in addition or an incorrect handling of decimal points. |
390 |
6 |
Choice.B |
This is correct . it accurate sum of 172.3 and 136.7 is indeed 309. |
309 |
7 |
Choice.C |
This option is close but incorrect. The sum of the decimal parts (3 + 7) is 10, which carries over to make the sum 309.0, not 310.9. |
310.9 |
8 |
Choice.D |
This option is incorrect because it close but slightly off. The sum of the numbers is 309.0, not 309.9. The additional .9 might result from a miscalculation of the decimal addition. |
309.9 |
9 |
Step |
Option |
B |
10 |
Sumup |
Can you summarize what you’ve understood in the above steps? |
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