1/7 Representing Subtraction
Presentation
•
Mathematics
•
7th Grade
•
Easy
+2
Standards-aligned
Steven Conway
Used 2+ times
FREE Resource
5 Slides • 9 Questions
1
Learners Can....
describe that subtracting a number results in the same value as adding the additive inverse
interpret a number line diagram that represents subtracting signed numbers as adding with an unknown addend
use a number line diagram to find the difference of signed numbers, and explain the reasoning
By Steven Conway
2
Categorize
-1 + 9 = 8
8 - 9 = -1
8 - (-1) = 9
x + (-11) = 7
7 - x = -11
7 - (-11) = x
For each equation, think about what other equations express the same relationship in a different way. Sort each equation into the correct categories.
3
Warm Up - Page 3
Isaac and friends have their input on the previous question.
4
Reorder
Tyler ended round 1 with 200 points.
He ended round 2 with -300 points.
He ended rounded 3 with -100 points.
He ended round 4 with 300 points.
Sort the number of points Tyler scored each round from least to greatest.
-300
-100
200
300
5
Explore - Page 2
Working with unfinished number lines and how to determine the answer.
6
Draw
Remember that subtracting a negative is the same as adding a positive.
7
Match
Match each number line diagram with its corresponding expression.
3 - 7
3 + 4
3 + 5
0 - 7
3 - 7
3 + 4
3 + 5
0 - 7
8
Draw
Complete each of the tables. One row in each table has been completed for you.
9
Explore - Page 5
Replace this with your body text. Duplicate this text as many times as you would like. All provided templates can be reused multiple times. Wish you a good day.
Happy teaching!
10
Multiple Choice
Which expression has the same value as -14 - 8?
14 + (-8)
-14 + 8
-14 + (-8)
14 - (-8)
11
Multiple Choice
What is the correct answer of the expression -14 - (-8)?
-22
-6
6
22
12
Categorize
9 - 4
-4 - (-9)
4 - 9
-9 - (-4)
9 - (-4)
4 - (-9)
Find the difference of each expression
13
Multiple Choice
A restaurant bill is $59 and you pay $72. What was the percentage of the tip?
82%
22%
18%
13%
14
Extra credit is waiting for you.
Hurry over to i-ready
Learners Can....
describe that subtracting a number results in the same value as adding the additive inverse
interpret a number line diagram that represents subtracting signed numbers as adding with an unknown addend
use a number line diagram to find the difference of signed numbers, and explain the reasoning
By Steven Conway
Show answer
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