3. Add without using number line :
(a) 11 + (-7
(c) (- 10) + (+ 19)
(e) (- 380) + (-270)
(b) (-13) + (+18)
(d) (-250) + (+ 150)
() (-217) + (- 100)
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Answer:
a. =. 4
c=. 9
e=. 650
b=. 5
d=. -100
()=. 317
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