1) =335
2) =401
3) =621
4) =722
5) =619
1) 2*9=18
2) 1880,18=18,18
3)18,18*5=90,9=91(м)
5000
50000
200000
7000000
20000000
<span>170 + 2160 : ( x - 18 ) = 350
2160 : (x - 18) = 350 - 170
x - 18 = 2160 : 180
x = 12 + 18
x = 30
Ответ: {30}
</span>
100 000:2000:5=10
100 000:5=20 000
100 000:2000=50