Step-5

Title: The Inverse Property

Grade: 6-b Lesson: S2-L3

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

Find the additive and multiplicative inverse of a:
\$ (1/3) a - 6 \$ = 2

2

Step

Let’s solve for a:

\$ (1/3) a - 6 \$ = 2

3

Step

Add 6 to both sides to isolate \$(1/3)a\$:

\$ (1/3) a - 6 + 6 = 2 + 6\$

\$ (1/3) a = 8 \$

4

Step

Multiply both sides by 3 to solve for a:

\$ a = 8 \times 3 \$

a = 24

5

Formula:

The additive inverse of

a = -a

6

Step

Now, the additive inverse of 24 is simply its negative value:

Additive inverse of 24 = - 24

7

Formula:

The multiplicative inverse of

\$ a \$ = \$ 1/a \$

8

Step

Now, the multiplicative inverse of 24 is simply its reciprocal:

Multiplicative inverse of 24 = \$(1/24) \$

9

Choice.A

This is not correct because it doesn’t correctly identify the additive and multiplicative inverses of the given values

24 and \$(1/24)\$

10

Choice.B

This option represents - 24 as the additive inverse and \$1/24\$ as the multiplicative inverse. This aligns with our calculations

- 24 and \$(1/24)\$

11

Choice.C

This option correctly represents - 24 as the additive inverse, but 24 doesn’t represent the multiplicative inverse of a. The correct multiplicative inverse is \$1/24\$

- 24 and \$(24)\$

12

Choice.D

This option correctly represents - 24 as the additive inverse, but \$1/22\$ doesn’t represent the multiplicative inverse of a. The correct multiplicative inverse is \$1/24\$

- 24 and \$(1/22)\$

13

Answer

Option

B

14

Sumup

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

Discussion: Step1 Step2 Step3 Step4 Step5


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