Question

calculeaza respectand ordinea operatiilor:
1.000-(28:4x25)+(19x3-39)=
[4x(5×12-6×5)-5×4]:10-2×(12×3-9×4)=

Answer 1

1000-(28:4x25)+(19x3-39)=843
1)28:4=7
2)7x25=175
3)19x3=57
4)57-39=18
5)1000-175=825
6)825+18=843
[4x(5x12-6x5)-5x4]:10-2x(12x3-9x4)=10
1)12x5=60
2)6x5=30
3)60-30=30
4)30x4=120
5)5x4=20
6)120-20=100
7)12x3=36
8)9x4=36
9)36-36=0
10)100:10=10
11)2x0=0
12)10-0=10