Practice questions available in McGraw Hill Math Grade 6 Answer Key PDF Lesson 4.2 Adding with Negative Numbers will engage students and is a great way of informal assessment.
McGraw-Hill Math Grade 6 Answer Key Lesson 4.2 Adding with Negative Numbers
Exercises Solve
Question 1.
12 + (-4)
Answer:
Sum of 12 + (-4), we get 8.
Explanation:
12 + (-4)
= 12 – 4
= 8.
Question 2.
(-14) + 8
Answer:
Sum of (-14) + 8, we get -6.
Explanation:
(-14) + 8
= – 14 + 8
= -6.
Question 3.
3 + (-13)
Answer:
Sum of 3 + (-13), we get -10.
Explanation:
3 + (-13)
= 3 – 13
= -10.
Question 4.
45 + (-23)
Answer:
Sum of 45 + (-23), we get 22.
Explanation:
45 + (-23)
= 45 – 23
= 22.
Question 5.
123 + (-43) + 22
Answer:
Sum of 123 + (-43) + 22, we get 102.
Explanation:
123 + (-43) + 22
= 123 – 43 + 22
= 80 + 22
= 102.
Question 6.
90 + (-45) + (-3)
Answer:
Sum of 90 + (-45) + (-3), we get 42.
Explanation:
90 + (-45) + (-3)
= 90 – 45 – 3
= 45 – 3
= 42.
Question 7.
(-10) + (-10) + 3
Answer:
Sum of (-10) + (-10) + 3, we get -17.
Explanation:
(-10) + (-10) + 3
= – 10 – 10 + 3
= – 20 + 3
= -17.
Question 8.
45 + (-32) + 2
Answer:
Sum of 45 + (-32) + 2, we get 15.
Explanation:
45 + (-32) + 2
= 45 – 32 + 2
= 47 – 32
= 15.
Question 9.
15 + (-14)
Answer:
Sum of 15 + (-14), we get 1.
Explanation:
15 + (-14)
= 15 – 14
= 1.
Question 10.
16 + 14 + (-13)
Answer:
Sum of 16 + 14 + (-13), we get 17.
Explanation:
16 + 14 + (-13)
= 16 + 14 – 13
= 30 – 13
= 17.
Question 11.
(-15) + 14
Answer:
Sum of (-15) + 14, we get -1.
Explanation:
(-15) + 14
= – 15 + 14
= -1.
Question 12.
67 + 12 + 13 + (-14)
Answer:
Sum of 67 + 12 + 13 + (-14), we get 88.
Explanation:
67 + 12 + 13 + (-14)
= 67 + 12 + 13 – 14
= 89 + 13 – 14
= 102 – 14
= 88.
Question 13.
43 + (-32) + 5
Answer:
Sum of 43 + (-32) + 5, we get 16.
Explanation:
43 + (-32) + 5
= 43 – 32 + 5
= 48 – 32
= 16.
Question 14.
(-43) + 32 + (-5)
Answer:
Sum of (-43) + 32 + (-5), we get -16.
Explanation:
(-43) + 32 + (-5)
= – 43 + 32 – 5
= – 11 – 5
= -16.
Question 15.
2 + 2 + (-3) + (-2)
Answer:
Sum of 2 + 2 + (-3) + (-2), we get -1.
Explanation:
2 + 2 + (-3) + (-2)
= 2 + 2 – 3 – 2
= 4 – 3 – 2
= 1 – 2
= -1.
Question 16.
4 + (-5) + 5
Answer:
Sum of 4 + (-5) + 5, we get 4.
Explanation:
4 + (-5) + 5
= 4 + – 5 + 5
= 9 – 5
= 4.
Question 17.
21 + (-45)
Answer:
Sum of 21 + (-45), we get – 24.
Explanation:
21 + (-45)
= 21 – 45
= – 24.
Question 18.
45 + (-43)
Answer:
Sum of 45 + (-43), we get 2.
Explanation:
45 + (-43)
= 45 – 43
= 2.