5 упражнения
1. (12 t - 6 q): 2
2. (2 m - 100 cm) : 4
3. 8 234×5
4. 62 758×4
5. 1 000×8:4
6. 1 000×6: 110

1. (12t - 6q) / 2 = 12t/2 - 6q/2 = 6t - 3q = 3(2t - q)

2. (2m - 100cm) / 4 = 2m(1 - 50c) / 4 = m(1 - 50c) / 2

3. 8234 * 5 = 41 170

4. 62758 * 4 = 251 032

5. 1000 * 8 / 4 = 2 000

1000 * 8 = 8 000

8 000 / 4 = 2 000

6. 1000 * 6 / 100 = 60

1000 * 6 = 6 000

6 000 / 100 = 60