Lesson Example Discussion Quiz: Class Homework |
Step-5 |
Title: Multiplication of decimals |
Grade: 5-a Lesson: S2-L3 |
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 |
Find the missing number: 199.9 × ? = 1979.01. |
|
2 |
Clue |
The given problem is |
199.9 × ? = 1979.01 |
3 |
Step |
The missing number be represented by x |
199.9 × x = 1979.01 |
4 |
Step |
Solve for x and divide 199.9 on both sides of the equation: |
x = \$(199.9 \times x)/199.9 = 1979.01/199.9\$ |
5 |
Step |
After simplification we get, |
x = 9.9 |
6 |
Step |
The missing number is 9.9. Therefore, 199.9 × 9.9 = 1979.01. |
|
7 |
Answer |
A |
|
8 |
Sumup |
Can you summarize what you’ve understood in the above steps? |
|
1 |
Choice.A |
This option is correct because 199.9×9.9 equals approximately 1979.01, which matches the given product |
9.9 |
2 |
Choice.B |
This option is incorrect because 199.9×8.9 equals approximately 1777.11, which does not match the given product |
8.9 |
3 |
Choice.C |
This option is incorrect because 199.9×8.8 equals approximately 1759.12, which does not match the given product |
8.8 |
4 |
Choice.D |
This option is incorrect because 199.9×9.8 equals approximately 1959.02, which is close but does not match the given product exactly |
9.8 |
5 |
Sumup |
Can you summarize what you’ve understood in the above steps? |
|
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