b) 70+(-20)+(-30) (d)-50+(-60)+50
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Answered by
2
Answer:
b) 20 d) -60
Step-by-step explanation:
b) 70+(-20)+(-30)
=70-20+(-30)
=50-30
=20
d) -50+(-60)+50
= -60
Answered by
4
B:-
Subtract 20 from 70 to get 50.
Subtract 30 from 50 to get 20.
D:-
Subtract 60 from -50 to get -110.
Add -110 and 50 to get -60.
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