Question

19+(8.5.2+2+8)-7

(14-7.1)+5(9+4)


23+(100+10.90).(8.7-7.8)




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Answer 1

19+(8.5.2+2+8)-7=
19+(40.2+2+8)-7=
19+(80+10)-7=
19+90-7=
109-7=
102


(14-7.1)+5(9+4)
(14-7)+5.13
7+65
73


23+(100+10.90).(8.7-7.8)=
23+(100+900).(56-56)=
23+1000.0=
23+0=
23

Answer 2

Oi...

a)

19 + (8 × 5 × 2 + 2 + 8) - 7

19 + (80 + 2 + 8) - 7

19 + 90 - 7

102

b)

(14 - 7 × 1) + 5(9 +4)

(14 - 7) + 5 × 13

7 + 65

72

c)

23 + (100 + 10 × 90) × (8 × 7 - 7 × 8)

23 + (100 + 10 × 9) × 0

23 + 0

23

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