Question

A)
[(28×5:2×10):5]+[3×(600:5+112:4)-83]
B) [(1737+678):7:5-7×7]:5×148=
C) (386+314):10+(195+305):10]:10=
D) 234:9+[4000-(31+7)×10]:5-219:3=​

Va rog ajutați ma

Answer 1

Răspuns:

[(28×5:2×10):5]+[3×(600:5+112:4)-83]=

=[(140:2x10):5]+[3×(120+28)-83]=

=[(70x10):5]+(3×148-83)=

=(700:5)+(444-83)=

=140+361=

=501

[(1737+678):7:5-7×7]:5×148=

=(2415:7:5-49):5×148=

=(345:5-49):5×148=

=(69-49):5×148=

=20:5×148=

=4x148=

=592

[(386+314):10+(195+305):10]:10=

=(700:10+500:10):10=

=(70+50):10=

=120:10=

=12

234:9+[4000-(31+7)×10]:5-219:3=

=26+(4000-38×10):5-73=

=26+(4000-380):5-73=

=26+3620:5-73=

=26+724-73=

=750-73=

=677

Explicație pas cu pas: