Question

dau coroana,5 stele și inimioara cui im efectuează și mie exercițiile ​

Answer 1

a) (0,23+0,495+0,112)×100=

=0,837×100=

=83,7

b) 3,2×(17,5-12,5+35)+100=

=3,2×40+100=

=128+100=

=228

c)(1,4+0,83-0,95)×13-6,8=

=1,28×13-6,8=

=16,64-6,8=

=9,84

d)(12,5+7,5)×(31,2×5-124)=

=20×(156-124)=

=20×32=

=640

e)5×(11,3-2,4×3,5)+11=

=5×2,9+11=

=14,5+11=

=25,5

f)3,5*2+1,2×{11+1,1×[6,5+2×(0,45-0,4)]}=

=12,25+1,2×[11+1,1×(6,5+2×0,05)]=

=12,25+1,2×[11+1,1×(6,5+0,1)]=

=12,25+1,2×(11+1,1×6,6)=

=12,25+1,2×(11+7,26)=

=12,25+1,2×18,26=

=12,5+21,912=

=34,162

g){3+0,5×[2,3-0,2×(3,1-5,12:3,2)]}:4=

={3+0,5×[2,3-0,2×(3,1-1,6)]}:4=

=[3+0,5×(2,3-0,2×1,5)]:4=

=[3+0,5×(2,3-0,3)]:4=

=(3+0,5×2):4=

=(3+1):4=

=4:4=

1

h)[(3,15+4,05)×36,9]:[(17,5-10,3)×0,41]=

=(7,2×36,9):(7,2×0,4)=

=265,68:2,88=

=92,25

Answer 2

Ignora ce este hasurat... Sunt greșeli