Question

a) 70-(40-20)+10+5???? b) (330+70)+(45+15)-30???? c) 89-46+24-14+8??? e)78-(36+12)-16+3??? por favor me ajudem se puder

Answer 1

a) 70 - (40-20) + 10 + 5 =
70 - 20 + 15 =
50 + 15 =
65

b) (330 + 70) + (45+15) -30 =
400 + 60 - 30 =
460 - 30 =
430

c) 89 - 46 + 24 - 14 + 8 =
121 - 60 =
61

e) 78 - (36+12) - 16 + 3 =
78 - 48 - 16 + 3 =
81 - 64 =
17