AnswersDAEP - Math 7 A 20 DAY TERMPercent Increase and Decrease

Adding Integers Answers

4 verified answers3 views
1
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What is the value of ?

Question illustration
A
40
B
77
C
4,096
D
9,317
2
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What is the value of ?

Question illustration
A
73
B
90
C
290
D
365
3

Madison and Tyler each wrote an expression that is equivalent to . The expressions they created are shown in the table.Expressions Madison and Tyler CreatedStudentExpressionMadisonTylerWhich statement is true?

Question illustration
A
Madison used the associative property.
B
Madison used the distributive property.
C
Tyler used the associative property.
D
Tyler used the distributive property.
4

Carlos is using the distributive property to evaluate the expression by using friendlier numbers. His work is shown below.Carlos’s Work Step 1Step 2Step 3Step 4569What was the first error that Carlos made?

Question illustration
A
Step 1 should have been 14(7 + 7).
B
Step 2 should have been 14(40) + 14(9).
C
Step 3 should have been 23(40).
D
Step 4 should have been 5,040.
5

Liz is using the distributive property to evaluate the expression by using friendlier numbers. Her work is shown below.Liz’s Work 27(36)Step 1 Step 2Step 3 Step 4405What was the first error that Liz made?

Question illustration
A
Step 1 should have been 27(6 + 30).
B
Step 2 should have been 27(3) + 12.
C
Step 3 should have been 27(30)(12).
D
Step 4 should have been 16,244.
6

What is the value of ?

Question illustration
A
11
B
14
C
17
D
19
7

Morgan rewrote the expression as . How will this change the work that is needed to evaluate the expression?

Question illustration
A
4.8 is now multiplied by 90 and 10.
B
4.8 is now added to 10 before adding 90.
C
4.8 is now added after finding the sum of 90 and 10.
D
4.8 is now added to both 90 and 10.
8

What is the value of ?

Question illustration
A
287
B
395
C
387
D
540
9

Which equation illustrates the commutative property of addition?

A
12 + 6 + 15 = 12 + 15 + 6
Option A
B
12 + 6 + 15 = 12 + (6 + 15)
Option B
C
12 + 6 + 15 = 18 + 15
Option C
D
12 + 6 + 15 = 12 + 6 + 15
Option D
10

Patti is using mental math to evaluate the expression . She recognizes that the expression will be easier to simplify if she can combine 70 and 30 before she works with the other numbers. Which should she do first?

Question illustration
A
She can use the associative property to rewrite the expression as .
Option A
B
She can use the associative property to rewrite the expression as .
Option B
C
She can use the commutative property to rewrite the expression as .
Option C
D
She can use the commutative property to rewrite the expression as .
Option D
11

The figure below shows the route that Maya traveled home from the library this afternoon.Maya wrote the expression to represent the total distance that she traveled. Which statement best describes Maya’s expression?

Question illustration
A
Maya’s expression will generate the correct sum because of the associative property.
B
Maya’s expression will generate the correct sum because of the commutative property.
C
Maya’s expression will generate the wrong sum because she violated the associative property.
D
Maya’s expression will generate the wrong sum because she violated the commutative property.
12

What is the value of ?

Question illustration
A
105
B
204
C
357
D
864
13

Which statement is true about the expression ?

Question illustration
A
The expression is equivalent to because of the associative property.
Option A
B
The expression is equivalent to because of the associative property.
Option B
C
The expression is equivalent to because of the commutative property.
Option C
D
The expression is equivalent to because of the commutative property.
Option D

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