2). 71/100*6,3 = 0,71*6,3 = 4,473
4). 7 1/20*1,4 = 7,05*1,4 = 9,87
6).11/50*3,3 = 0,22*3,3 = 0,726
8).6,5*1/2 = 6,5*0,5 = 3,25
1) 17:2= 8,5 л - в одном бидоне
2) 8,5*6= 51 л - будет в 6 бидонах
6/3 : 3 = 6/3 * 1/3 = 6/9 = 2/3
9/6 : 3 = 9/6 * 1/3 = 3/6 * 1/1 = 3/6 = 1/2
15/9 : 3 = 15/9 * 1/3 = 5/9
21/33 : 3 = 21/33 * 1/3 = 7/33
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14/21 = 2/3
10/18 = 5/9
17/51 = 1/3
15/18 = 5/6
4000-318*7=1774
1) 318*7=2226
2) 4000-2226=1774
75*7+9*68=1137
1) 75*7=525
2) 68*9=612
3) 525+612=1137
4*(624-475)=596
1) 624-475=149
2) 4*149=596
6400:100*7+67=515
1) 6400:100=64
2) 64*7=448
3) 448+67=515
(175+283)*3=1374
1) 175+283=458
2) 458*3=1374
900-810:9*10=0
1) 810:9=90
2) 90*10=900
3) 900-900=0