Упражнение 9

Упражнение 9

1. \( (15 + 1) : 2 = 16 : 2 = 8 \)


2. \( (24 + 3) : 9 = 27 : 9 = 3 \)


3. \( 8 \cdot (29 - 27) = 8 \cdot 2 = 16 \)


4. \( 5 \cdot (33 - 30) = 5 \cdot 3 = 15 \)


5. \( 6 \cdot (18 - 16) = 6 \cdot 2 = 12 \)


6. \( 1 \cdot (90 - 78) = 1 \cdot 12 = 12 \)


7. \( (0 + 75) \cdot 1 = 75 \cdot 1 = 75 \)


8. \( (10 - 0) \cdot 4 = 10 \cdot 4 = 40 \)


9. \( (55 - 50) \cdot 2 = 5 \cdot 2 = 10 \)


10. \( (6 + 15) : 7 = 21 : 7 = 3 \)

Ответ: 1) 8, 2) 3, 3) 16, 4) 15, 5) 12, 6) 12, 7) 75, 8) 40, 9) 10, 10) 3.