Lesson Topics Discussion Quiz: Class Homework |
Steps-3 |
Title: Order of Operations |
Grade 6+ Lesson s1-l7 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Quiz: Discussion Step
| Id | Type | Name | Note |
|---|---|---|---|
1 |
Problem |
Simplify the expression: |
|
2 |
Step |
The given expression \$ 4^2 + 6 \div 2 times 3 − 5 \$ |
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3 |
Hint |
To evaluate the expression, let’s follow the PEMDAS rule: Parentheses |
|
4 |
Step |
First, calculate the exponent \$ 4^2 = 16 \$ \$ 16 + 6 \div 2 times 3 − 5 \$ |
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5 |
Step |
Now, perform the division \$ 6 \div 2 = 3 \$ \$ 16 + 3 times 3 − 5 \$ |
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6 |
Step |
Next, perform the multiplication \$ 3 times 3 = 9\$ 16 + 9 − 5 |
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7 |
Step |
Finally, add and subtract from left to right: 16 + 9 = 25 25 − 5 = 20 |
|
8 |
Solution |
So, the value of the expression is 20. |
|
9 |
Sumup |
Please Summarize Problem, Hint, Clue, Formula and Steps |
|
Choices |
|||
10 |
Choice-A |
This result is not correct because only one part of the expression was evaluated |
Wrong 10 |
11 |
Choice-B |
Mismatched expression; could be due to incorrect addition of 16 from \$4^2\$ to the result of 6 ÷ 2 × 3 − 5 |
Wrong 12 |
12 |
Choice-C |
Incorrect calculation due to incorrect order of operations |
Wrong 25 |
13 |
Choice-D |
This matches the calculated result of the expression, so it’s the correct step |
Correct 20 |
14 |
Answer |
Option |
D |
15 |
Sumup |
Please Summarize Choices |
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