Question

Indica dupa model ordinea efectuariioperatilor 15*5:3 -9. (88:8 +36::4):2. (42-6):4*23. 5*(123-12*4).

Answer 1

15x5:3-9=
15x5=75
75:3=25
25-9=16
15x5:3-9=
75:3-9=
25-9=16

(88:8+36:4):2=
88:8=11
36:4=9
11+9=20
20:2=10
(88:8+36:4):2=
(11+9):2=
20:2=10

(42-6):4x23=
42-6=36
36:4=9
9x23=207
(42-6):4x23=
36:4x23=
9x23=207

5x(123-12x4)
12x4=48
123-48=75
5x75=375
5x(123-12x4)=
5x(123-48)=
5x75=375