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Step-4

Title: Adding signed numbers

Grade: 6-a Lesson: S1-L2

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

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Addition of integers: \$ (- 7) + (- 6) + 34 \$
2	Hint	The integers are	\$ - 7,- 6 and 34 \$
3	Formula:	Here we apply the rule of addition of positive and negative integers	\$ (+) + (-) = "use the sign of larger absolute value number" \$
4	Step	Let us add the positive and negative integers	\$ -7 + (- 6) + 34 \$
5	Step	After simpification	\$-7 - 6 + 34 \$
6	Step	After adding the positive and negative integers	\$+34 - 13 \$
7	Step	After adding	\$ 21 \$
8	Step	Therefore, the addition of integers is \$ 21 \$.
9	Choice.A	This is not correct because it doesn’t accurately represent the sum of the integers provided	15
10	Choice.B	This is not correct because it appears to have added all the integers without considering their signs. Adding -7, -6, and 34 does not yield 42	42
11	Choice.C	This is correct because it accurately represents the sum of the integers provided	21
12	Choice.D	This is not correct because it simply states the last number in the addition without performing the arithmetic operation	34
13	Answer	Option	C
14	Sumup	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

Addition of integers:
\$ (- 7) + (- 6) + 34 \$

Hint

The integers are

\$ - 7,- 6 and 34 \$

Formula:

Here we apply the rule of addition of positive and negative integers

\$ (+) + (-) = "use the sign of larger absolute value number" \$

Step

Let us add the positive and negative integers

\$ -7 + (- 6) + 34 \$

Step

After simpification

\$-7 - 6 + 34 \$

Step

After adding the positive and negative integers

\$+34 - 13 \$

Step

After adding

\$ 21 \$

Step

Therefore, the addition of integers is \$ 21 \$.

Choice.A

This is not correct because it doesn’t accurately represent the sum of the integers provided

Choice.B

This is not correct because it appears to have added all the integers without considering their signs. Adding -7, -6, and 34 does not yield 42

Choice.C

This is correct because it accurately represents the sum of the integers provided

Choice.D

This is not correct because it simply states the last number in the addition without performing the arithmetic operation

Answer

Option

Sumup

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