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Lesson Example Discussion Quiz: Class Homework

Step-1

Title: Exponent Basics

Grade: 6-b Lesson: S3-L1

Explanation: Hello Students, time to practice and review the steps for the problem.

Discussion: Step1 Step2 Step3 Step4 Step5

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Evaluate Expression \$ 50 - 4^2 \$.
2	Step	Given expression	\$ 50 - 4^2 \$.
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: \$4^2\$	\$ 4 \times 4 \$ = 16
5	Step	Substitute back into the expression and perform subtraction: ⇒ 50 - 16 ⇒ 34
6	Step	So, the result of the expression \$50 − 4^2 \$ is 34.
7	Choice.A	This answer is correct because the value of the expression is 34	34
8	Choice.B	This option is incorrect because the value of the expression is 34, not 30	30
9	Choice.C	This choice is incorrect because the value of the expression is 34, not 25	25
10	Choice.D	This answer is incorrect because the value of the expression is 34, not 45	45
11	Answer	Option	A
12	Sumup	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

Evaluate Expression \$ 50 - 4^2 \$.

Step

Given expression

\$ 50 - 4^2 \$.

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).

Step

Calculate the exponent: \$4^2\$

\$ 4 \times 4 \$
= 16

Step

Substitute back into the expression and perform subtraction:

⇒ 50 - 16

⇒ 34

Step

So, the result of the expression \$50 − 4^2 \$ is 34.

Choice.A

This answer is correct because the value of the expression is 34

Choice.B

This option is incorrect because the value of the expression is 34, not 30

Choice.C

This choice is incorrect because the value of the expression is 34, not 25

Choice.D

This answer is incorrect because the value of the expression is 34, not 45

Answer

Option

Sumup

Can you summarize what you’ve understood in the above steps?

Discussion: Step1 Step2 Step3 Step4 Step5