1.
1) 42:7×1 = 6
2) 18:9×4 = 8
2.
1) 200:100×40 = 80
2) 80:100×12 = 9,6
3.
24:12×5 = 10
4.
1) 200:5×2 = 80
2) 80:4×3 = 60
3) 200-80-60 = 60
