Question

Calculează respectând ordinea efectuării operațiilor:
a)(16+19):(20-13)
b)(64-59)×(90-82)
c)(100-14)-(100-83)

Answer 1

a)
1)16+19=35
2)20-13=7
3)35:7=5


b)
1)64-59=5
2)90-82=8
3)58=40

c)
1)100-14=86
2)100-83=17
3)86-17=69

Answer 2

a ) ( 16 + 19 ) : ( 20 - 13 ) =

35 : 7 =

5


b ) ( 64 - 59 ) × ( 90 - 83 ) =

5 × 7 =

35


c ) ( 100 - 14 ) - ( 100 - 83 ) =

86 - 17 =

69