Question

Integers addition and subraction

Add without number line :
11+(-7)
(-380)+(-270)
(-13)+(+18)

Find the sum:
137 and -354

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Answer 1

Answer:

4

-650

5

-217

Step-by-step explanation:

11+(-7)=11-7=4

(-380)+(-270) = -380-270 = -650

(-13)+(+18) = -13+18 = 18-13 = 5

137+(-354) = 137-354 = -217

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Answer 2

Answer:

+*- = - 11-7=4 -380-270 +*+ =+ -*- =+ -*+ = - 18-13= 5