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McGraw-Hill Math Grade 7 Answer Key Lesson 5.1 Negative Numbers
Exercises Add
Question 1.
(-4) + 4 =
Answer:
(-4) + 4 = 0
Explanation:
Perform addition operation on above two given numbers. When we add a negative number to its inverse the total is 0. Add -4 to 4 the sum is equal to 0.
Question 2.
(-110) + 210 =
Answer:
(-110) + 210 = 100
Explanation:
Perform addition operation on above two given numbers. Add -110 to 210 the sum is equal to 100.
Question 3.
(-9) + 17 + 9 + (-17) =
Answer:
(-9) + 17 + 9 + (-17) = 0
Explanation:
Perform addition operation on above given numbers. When we add a negative number to its inverse the total is 0. Add – 9 with 17, 9 and -17 the sum is equal to 0.
Question 4.
145 + (-125) =
Answer:
145 + (-125) = 20
Explanation:
Perform addition operation on above two given numbers. Add 145 to -125 the sum is equal to 20.
Question 5.
48 + (-38) =
Answer:
48 + (-38) = 10
Explanation:
Perform addition operation on above two given numbers. Add 48 to -38 the sum is equal to 10.
Question 6.
(-75) + 55 + 732 + (-712) =
Answer:
(-75) + 55 + 732 + (-712) = 0
Explanation:
Perform addition operation on above given numbers. Add -75 to 55, 732 and -712 the sum is equal to 0.
Question 7.
\(\frac{1}{4}\) + \(\left(-\frac{1}{4}\right)\) =
Answer:
\(\frac{1}{4}\) + \(\left(-\frac{1}{4}\right)\) = 0
Explanation:
Perform addition operation on above two given numbers. When we add a negative number to its inverse the total is 0. Add 1/4 to -1/4 the sum is equal to 0.
Question 8.
541 + 641 + (-741) + (-641) =
Answer:
541 + 641 + (-741) + (-641) = – 200
Explanation:
Perform addition operation on above given numbers. Add 541 with 641, -741 and -641 the sum is equal to -200.
Question 9.
44 + (-77) + 0 =
Answer:
44 + (-77) + 0 = -33
Explanation:
Perform addition operation on above given numbers. Add 44 to -77 and 0 the sum is equal to -33.
Question 10.
16 + \(\frac{1}{4}\) + \(\left(-\frac{1}{4}\right)\) + (-10) =
Answer:
16 + \(\frac{1}{4}\) + \(\left(-\frac{1}{4}\right)\) + (-10) = 6
Explanation:
Perform addition operation on above given numbers. Add 16 to 1/4, -1/4 and -10 the sum is equal to 6.