This handy Spectrum Math Grade 7 Answer Key Chapter 1 Lesson 1.6 Subtracting Integers provides detailed answers for the workbook questions.
Spectrum Math Grade 7 Chapter 1 Lesson 1.6 Subtracting Integers Answers Key
To subtract an integer, add its opposite (except in the case of 0).
Subtract.
Question 1.
a. 3 – 11 = ____
Answer: -8
3 – 11 = 3 + (-11) = -8
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. 5 – 2 = ____
Answer: 3
5 – 2 = 5 + (-2) = 3
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. -4 – 6 = ___
Answer: -10
-4 – 6 = -4 + (-6) = 10
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 2.
a. -12 – 3 = ____
Answer: -15
-12 – 3 = -12 + (-3) = -15
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. -5 – (-6) = ____
Answer: 1
-5 – (-6) = -5 + 6 = 1
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. 14 – 19 = ____
Answer: -5
14 – 19 = 14 + (-19) = -5
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 3.
a. 4 – 19 = ____
Answer: -15
4 – 19 = 4 + (-19) = -15
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. -11 – (-1) = ____
Answer: -10
-11 -(-1) = -11 + 1 = -10
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. 16 – (-27) = ____
Answer: 43
16 – (-27) = 16 + 27 = 43
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 4.
a. -6 – (-6) = ____
Answer: 0
-6 – (-6) = -6 + 6 = 0
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. -11 – 0 = ____
Answer: -11
-11 – 0 =-11 + (-0) = -11
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. -2 – 2 = ____
Answer: -4
-2 – 2 = -2 + (-2) = -4
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 5.
a. 8 – 1 = ____
Answer: 7
8 – 1 = 8 + (-1) = 7
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. 8 – (-1) = ____
Answer: 9
8 – (-1) = 8 + 1 = 9
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. -13 – 3 = ____
Answer: -16
-13 – 3 = -13 + (-3) = -16
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 6.
a. 43 – 15 = ____
Answer: 28
43 – 15 = 43 + (-15) = 28
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. -27 – (-39) = ____
Answer: 12
-27 – (-39) = -27 + 39 = 12
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. -24 – (-38) = ____
Answer: 14
-24 – (-38) = -24 + 38 = 14
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 7.
a. -46 – (-31) = ____
Answer: -15
-46 – (-31) = -46 + 31 = -15
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. -48 – (-47) = ____
Answer: -1
-48 – (-47) = -48 + 47 = -1
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. -38 – (-17) = ____
Answer: -21
-38 – (-17) = -38 + 17 = -21
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 8.
a. 9 – (-6) = ____
Answer: 15
9 – (-6) = 9 + 6 = 15
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. 15 – (-1) = ____
Answer: 16
15 – (-1) = 15 + 1 = 16
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. -19 – (-22) = ____
Answer: 3
-19 – (-22) = -19 + 22 = 3
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 9.
a. (-3) – 24 = ____
Answer: -27
(-3) – 24 =-3 – 24 = -27
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. -11 – 44 = ____
Answer: -55
-11 – 44 = -11 + (-44) = -55
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. 42 – 45 = ____
Answer: -3
42 – 45 = 42 + (-45) = -3
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 10.
a. -33 – 12 = ____
Answer: -45
-33 – 12 = -33 + (-12) = -45
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. -37 – (-40) = ____
Answer: 3
-37 – (-40) = -37 + 40 = 3
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. 5 – (-32) = ___
Answer: 37
5 – (-32) = 5 + 32 = 37
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Subtract.
Question 1.
a. -32 – (-27) = ____
Answer: 5
-32 – (-27) = -32 + 27 = 5
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. -26 – 3 = ____
Answer: -29
-26 – 3 = -26 + (-3) = -29
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. 28 – (-20) = ____
Answer: 48
28 – (-20) = 28 + 20 = 48
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 2.
a. 7 – (-37) = ____
Answer: 44
7 – (-37) = 7 + 37 = 44
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. -9 – 48 = ____
Answer: -57
-9 – 48 = -9 + (-48) = -57
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. 28 – (-15) = ____
Answer: 43
28 – (-15) = 28 + 15 = 43
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 3.
a. 16 – (-1) = ___
Answer: 17
16 – (-1) = 16 + 1 = 17
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. 24 – (-49) = ____
Answer: 73
24 – (-49) = 24 + 49 = 73
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. -30 – (-36) = ____
Answer: 6
-30 – (-36) = -30 + 36 = 6
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 4.
a. -44 – 24 = ____
Answer: -68
-44 – 24 = – 44 + (-24) = -68
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. -31 – 34 = ____
Answer: -65
-31 – 34 = -31 + (-34) = – 65
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. -31 – (-13) = ____
Answer: -18
-31 – (-13) = -31 + 13 = -18
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 5.
a. -49 – (-46) = ____
Answer: -3
-49 – (-46) = -49 + 46 = -3
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. -16 – 49 = ____
Answer: -65
-16 – 49 = -16 + (-49) = -65
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. 18 – 28 = ____
Answer: -10
18 – 28 =18 + (-28) = -10
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 6.
a. -32 – (-50) = ___
Answer: 18
-32 – (-50) = -32 + 50 = 18
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. -32 – (-21) = ___
Answer: -11
-32 – (-21) = -32 + 21 = -11
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. -48 – (-47) = ____
Answer: -1
-48 – (-47) = – 48 + 47 = -1
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 7.
a. -5 – (-30) = ____
Answer: 25
-5 – (-30) = -5 + 30 = 25
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b.
14 – (-20) = ___
Answer: 34
14 – (-20) =14 + 20 = 34
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. 9 – (-47) = ____
Answer: 56
9 – (-47) = 9 + 47 = 56
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 8.
a. -33 – 39 = ___
Answer: -72
-33 – 39 = -33 + (-39) = -78
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. 4 – (-8) = ___
Answer: 12
4 – (-8) = 4 + 8 = 12
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. 1 – (-42) = ____
Answer: 43
1 – (-42) = 1 + 42 = 43
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 9.
a. 32 – (-41) = ___
Answer: 73
32 – (-41) = 32 + 41 = 73
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. 40 – 44 = ___
Answer: -4
40 – 44 = 40 + (-44) = -4
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. -13 – (-39) = ____
Answer: 26
-13 – (-39) = -13 + 39 = 26
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 10.
a. -50 – 19 = ____
Answer: -69
-50 – 19 = -50 + (-19) = -69
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. 48 – (-32) = ____
Answer: 80
48 – (-32) = 48 + 32 = 80
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. -14 – (-39) = ____
Answer: 25
-14 – (-39) = -14 + 39 = 25
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 11.
a. -18 – (-4) = ___
Answer: -14
-18 – (-4) = -18 + 4 = -14
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. -45 – 13 = ___
Answer: -58
-45 – 13 = -45 + (-13) = -58
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. 8 – (-67) = ____
Answer: 75
8 – (-67) = 8 + 67 =75
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 12.
a. 56 – (-21) = ____
Answer: 77
56 – (-21) = 56 + 21 = 77
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. -11 – 34 = ____
Answer: -45
-11 – 34 = -11 + (-34) = -45
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. 24 – (-17) = ____
Answer: 41
24 – (-17) = 24 + 17 = 41
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 13.
a. 31 – (-31) = ____
Answer: 62
31 – (-31) = 31 + 31 = 62
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. 26 – (-9) = ____
Answer: 35
26 – (-9) = 26 + 9 = 35
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. -83 – (-3) = ____
Answer: 80
-83 – (-3) = -83 + 3 = – 80
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
Question 14.
a. -87 – 6 = ____
Answer: -93
-87 – 6 = -87 + (-6) = -93
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
b. -90 – 12 = ___
Answer: -102
-90 – 12 = -90 + (-12) = -102
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.
c. -46 – (-9) = ____
Answer: -37
-46 – (-9) = -46 + 9 = -37
Subtraction is the same as the process of adding the additive inverse, or opposite, of a number to another number.