a) 100 - 4
1) $$100 : 4 = 25$$
2) $$25 : 16 = 1.5625$$
3) $$1.5625 + 12 = 13.5625$$
4) $$13.5625 + 28 = 41.5625$$
Ответ: 41.5625
б) 75 - 29
1) $$75 - 29 = 46$$
2) $$46 : 23 = 2$$
3) $$2 + 18 = 20$$
4) $$20 : 36 = 0.555$$
Ответ: 0.555
в) 90 - 6
1) $$90 - 6 = 84$$
2) $$84 : 14 = 6$$
3) $$6 + 19 = 25$$
4) $$25 \cdot 3 = 75$$
Ответ: 75
г) 92 - 47
1) $$92 - 47 = 45$$
2) $$45 : 15 = 3$$
3) $$3 + 23 = 26$$
4) $$26 : 13 = 2$$
Ответ: 2
д) 100 - 16
1) $$100 - 16 = 84$$
2) $$84 : 12 = 7$$
3) $$7 + 9 = 16$$
4) $$16 \cdot 3 = 48$$
Ответ: 48