Question

21.Evaluate the following: (i)20-(-30)+10. (ii)-30+(70)-45
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Answer 1

answer 1 = 60 and 2= -5

Step-by-step explanation:

1= 20-(-30)+10 =20+30+10=60

2= -30+(70)-45=70-30-45=70-75=-5

Answer 2

Step-by-step explanation:

i) 50.

ii) -5

step by step explained in given above solution

%Right Ans