Question

Вычислите удобным способом.

0.5*5.38*2=
0.25*12.63*4=
0.125*0.823*8=
5*57.2*0.2=
2.5*0.23*4=
1.25*17.2*8=

Answer 1

$0.5*5.38*2= frac{1}{2} *5.38*2=5.38 \ 0.25*12.63*4= frac{1}{4} *12.63*4=12.63 \ 0.125*0.823*8= frac{x1}{8}*0.823*8=0.823 \ 5*57.2*0.2=5*57.2* frac{1}{5} =57.2 \ 2.5*0.23*4= frac{25}{10} *0.23* frac{100}{25} =0.23*10=2.3 \ 1.25*17.2*8= frac{125}{100}*17.2* frac{1000}{125} =17.2*10=172$