1. Вычисли: 20 \(\cdot\) 7 = 140 240 : 32.0 = 8 320 : 80 - 4 = 0 85 : 17 : 5 = 1 19 \(\cdot\) 4 = 76 76 : 4 = 19

Решение:

1. \( 20 \cdot 7 = 140 \)

2. \( 240 : 32 = 8 \)

3. \( 320 : 80 - 4 = 4 - 4 = 0 \)

4. \( 85 : 17 : 5 = 5 : 5 = 1 \)

5. \( 19 \cdot 4 = 76 \)

6. \( 76 : 4 = 19 \)

Ответ: 140, 8, 0, 1, 76, 19.