17307: 27+304*217 и 403*119+27648: 48= (9483+435): 87 и 8908: 68-544: 68= 3105: 23+186796: 82 и 159600: 42-209*5= *по ! *

1.17307:27+304×217=66609;

1)17,307:27=641;

2)304×217=65,968;

3)65,968+641=66,609;

2.403×119+27648:48=48,633;

1)403×119=47,957;

2)27648:48=576;

3)47,957+676=48,633;

3.(9483+435):87=114;

1)9483+435=9,918;

2)9,918:87=114;

4.8908:68-544:68=123;

1)8908:68=131;

2)544:68=8;

3)131-8=123;

5.3105:23+186,796:82=2,413;

1)3105:23=135;

2)186,796:82=2,278;

3)2,278+135=2,413;

6.159,600:42-209×5=2,755;

1)159,600:42=3,800;

2)209×5=1,045;

3)3,800-1,045=2,755;

Удачи :)