Решите примеры(устно) и запишите только ответы.

30:3•(70:2+35)+(100:2:2+5)•40-1=?

1000000•5:1000000•((60+10):2-25)•5•0=?

123456789:0+(500:50+90+100+800-500+70-5)=?

100•300:1000=? 90+50+10+5=?
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