Lesson Example Discussion Quiz: Class Homework |
Step-5 |
Title: Order of Operations |
Grade: 6-a Lesson: S1-L7 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Calculate: \$ (5^2) - (3 \times 2 + 4) \div 2 \$ |
|
2 |
Step |
The given expression |
\$ (5^2) - (3 \times 2 + 4) \div 2 \$ |
3 |
Hint |
To evaluate the expression, let’s follow the PEMDAS rule |
Parentheses |
4 |
Step |
Evaluate the expression inside the parentheses |
\$ 3 \times 2 = 6 \$ 6 + 4 = 10 |
5 |
Step |
So, the expression becomes |
\$ 5^2 -10 \div 2\$ |
6 |
Step |
Evaluate the exponent |
\$ 5^2 \$ = 25 |
7 |
Step |
So, the expression becomes |
\$ 25 - 10 \div 2 \$ |
8 |
Step |
Perform the division |
\$ 10/2 \$ = 5 |
9 |
Step |
Perform the subtraction: |
25 - 5 = 20 |
10 |
Step |
Therefore, the value of the expression is 20. |
|
11 |
Choice.A |
It is inaccurate as it doesn’t correspond to the precise result of 20, thus rendering it incorrect |
19 |
12 |
Choice.B |
This answer is correct because by applying the PEMDAS rule we got the result of 20 |
20 |
13 |
Choice.C |
It is inaccurate as it deviates from the precise result of 20 |
21 |
14 |
Choice.D |
It is incorrect as it does not align with the accurate outcome of 20 |
22 |
15 |
Answer |
Option |
B |
16 |
Sumup |
Can you summarize what you’ve understood in the above steps? |
|
Copyright © 2020-2022 saibook.us Contact: info@saibook.us Version: 1.5 Built: 11-April-2024 09:20AM EST