Lesson Topics Discussion Quiz: Class Homework |
Steps-4 |
Title: Subtracting signed numbers |
Grade 6+ Lesson s1-l3 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Quiz: Discussion Step
| Id | Type | Name | Note |
|---|---|---|---|
1 |
Problem |
Subtraction of integers: |
|
2 |
Step |
The three integers are |
\$ - 10, - 3, 2 \$ |
3 |
Step |
Subtraction problem turns into an addition problem |
\$ ((- 10) - ( - 3 )) + (- 2) \$ |
4 |
Step |
After subtraction problem turns into an addition problem |
\$ ((- 10) + 3) + (- 2) \$ |
5 |
Formula |
If we follow the addition rule of positive and negative integers: \$ (-) + (+) = "use the sign of larger absolute value number" \$. |
|
6 |
Step |
Let us add both the positive and negative integers |
\$( -10 + 3 ) + (-2) \$ |
7 |
Step |
After adding both positive and negative integers |
\$(- 7) + (- 2) \$ |
8 |
Step |
Here we apply the rule of addition of negative integers |
\$ (-) + (-) = (-)\$ |
9 |
Step |
Let us add both the negative integers |
\$ (- 7) + (- 2) \$ |
10 |
Step |
After adding both negative integers |
\$-7 - 2 \$ = -9 |
12 |
Solution |
Therefore, the subtraction of integers is \$ - 9 \$. |
|
13 |
Sumup |
Please Summarize Problem, Hint, Clue, Formula and Steps |
|
Choices |
|||
14 |
Choice-A |
This option is correct: When you add (+5) and subtract (-7), the result (-2) aligns with our calculation |
Correct -9 |
15 |
Choice-B |
This option is incorrect; integer subtraction doesn’t involve subtracting the absolute value of 2 from the result |
Wrong -5 |
16 |
Choice-C |
This claims (+5) − (+7) equals -1, yet our calculation reveals it equals -2, rendering it wrong |
Wrong -7 |
17 |
Choice-D |
This choice falsely states that adding 5 to -7 equals -3, conflicting with our precise result of -2 |
Wrong -11 |
18 |
Answer |
Option |
A |
19 |
Sumup |
Please Summarize Choices |
|
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