Lesson Topics Discussion Quiz: Class Homework |
Steps-1 |
Title: Absolute values |
Grade 6+ Lesson s1-l5 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Quiz: Discussion Step
| Id | Type | Name | Note |
|---|---|---|---|
1 |
Problem |
Simplify : \$- |( - 5) times 4 | times 3\$. |
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2 |
Step |
Given expression is \$- |( - 5) times 4 | times 3\$ |
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3 |
Step |
First, let’s simplify the expression inside the absolute value: \$- |(- 5) times 4 | = - | - 20 | \$ |
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4 |
Step |
Then, since the absolute value of - 20 is 20, we have: \$ - | - 20 | = - 20 \$ |
|
5 |
Step |
Now, we multiply by 3: \$ − 20 times 3 = - 60 \$ |
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6 |
Solution |
So, the simplified expression is -60. |
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7 |
Sumup |
Please Summarize Problem, Hint, Clue, Formula and Steps |
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Choices |
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8 |
Choice-A |
Option A states that the step is 30, but as we have just shown, the correct step is 60. This means option A is incorrect |
Wrong 30 |
9 |
Choice-B |
The error lies in applying the negative sign before evaluating the absolute value, resulting in - 40 incorrectly |
Wrong -40 |
10 |
Choice-C |
20 isn’t accurate; it lacks the negative sign, essential for a negative result in the original expression |
Wrong 20 |
11 |
Choice-D |
Correct; starting with - 5 times 4 gives - 20, absolute value yields 20, then multiply by 3 for - 60 |
Correct -60 |
12 |
Answer |
Option |
D |
13 |
Sumup |
Please Summarize Choices |
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