69:2*12+800:100= 58:2*25-500:10= 90:(60:20)+600:6= 42+70:5*4= 92-92:4*2= 84:(7*3)*100= ...

Question

69:2*12+800:100=
58:2*25-500:10=
90:(60:20)+600:6=
42+70:5*4=
92-92:4*2=
84:(7*3)*100=
пожалуйста с действия

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Answer 1

69;2•12+800:100=414+8=422
58:2•25–500:100=725–5=720
90:(60:20)+600:6=90:3+100=30+100=130
42+70:5•4=42+56=98
92–92:4•2=92–46=46
84:(7•3)•100=84:21•100=400