Lesson Example Discussion Quiz: Class Homework |
Step-2 |
Title: Exponent Basics |
Grade: 6-b Lesson: S3-L1 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Simplify the expression \$ 65 +(-3)^2 \$. |
|
2 |
Step |
Given expression |
\$ 65 +(-3)^2 \$ |
3 |
Hint |
Follow the order of operations (PEMDAS/BODMAS): which stands for Parentheses/Brackets, Exponents/Orders, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right). |
|
4 |
Step |
Calculate the exponent: \$(-3)^2\$ |
\$ (-3) \times (-3) \$ = 9 |
5 |
Step |
Substitute back into the expression and perform addition: |
65 + 9 ⇒ 74 |
6 |
Step |
So, the result of the expression \$ 65 +(-3)^2 \$ is 74. |
|
7 |
Choice.A |
This choice is not correct because the result of the expression is 74, not 67 |
67 |
8 |
Choice.B |
This answer is correct because the result of the expression is 74 |
74 |
9 |
Choice.C |
This option is not correct because the result of the expression is 74, not 83 |
83 |
10 |
Choice.D |
This is not correct because the result of the expression is 74, not 95 |
95
|
11 |
Answer |
Option |
B |
12 |
Sumup |
Can you summarize what you’ve understood in the above steps? |
|
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