16
26
36
46
56
60
61
62
63
64
65
66
67
68
69
76
86
96
1 3 2 4
(3/7 - 1/4) + (2/3 - 3/5) + 0,5 = 313/420
1) 3/7 - 1/4 = 12/28 - 7/28 = 5/28
2) 2/3 - 3/5 = 10/15 - 9/15 = 1/15
3) 5/28 + 1/15 = 75/420 + 28/420 = 103/420
4) 103/420 + 5/10 = 103/420 + 210/420 = 313/420
1)84-57=27(л.)
2)27:9=3
3)57:3=19(б) том.сока
4) 84:3=28(б.) ябл.сока.
91 = 90 + 1
36 = 30 + 6
72 = 70 + 2
88 = 80 + 8
34 = 30 + 4
40 = 40 + 0
50 = 50 + 0
70 = 70 + 0