Question

Tính tổng: (-17) + 5 + 8 + 17

Answer 1

(–17 ) + 5 + 8 + 17

= [(–17) + 17] + 5 + 8

= 0 + 5 + 8 = 13.

Answer 2

(-17)+5+8+17 =[(-17)+17]+(5+8) =0+13 =13