Question

a) [(311+114-100):5+(70+84×5:4)]-230=
b) 2.099+1-(109+1-672:7)×4+6:6=
c) [142×5-(1.122:11-707:7)×125]:15:3=
d) [(964×12+36×12):100+72×6]:24-(12.696:24-2×253)=
Vă rog repede!!!! ​

Answer 1

a)[(311+114-100):5+(70+84*5:4)]-230=

=[(425-100):5+(70+84*5:4)]-230=

=[325:5+(70+84*5:4)]-230=

=[65+(70+420:4)]-230=

=[65+(70+105)]-230=

=(65+175)-230

=240-230

=10

b).2.009+1-(109+1-672:7)*4+6:6=

=2.009+1-(109+1-96)*4+1=

=2.009+1-(110-96)*4+1=

=2.009+1-14*4+1=

=2.009+1-56+1=

=2.010-57=

=1.953

c).[142*5-(1.122:11-707:7)*125]:15:3=

=[142*5-(102-101)*125]:15:3=

=(142*5-1*125):15:3=

=(710-125):15:3=

=585:15:3=

=39:3=

=13

d.)[(964*12+36*12):100+72*6]:24-(12.696:24-2*253)=

=[(11.568+432):100+432]:24-(529-506)=

=(12.000:100+432):24-23=

=(12+432):24-23=

=455:24-23=

=29-23

3

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