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МатематикаВопрос:
15. Calculate: 9 × 3 - 36 : 9 8 × 5 - 28 : 7 9 × 8 - 42 : 6 7 × 5 - 12 : 4
Ответ:
Решение:
- \[ 9 \times 3 - 36 \div 9 = 27 - 4 = 23 \]
- \[ 8 \times 5 - 28 \div 7 = 40 - 4 = 36 \]
- \[ 9 \times 8 - 42 \div 6 = 72 - 7 = 65 \]
- \[ 7 \times 5 - 12 \div 4 = 35 - 3 = 32 \]
Ответ: 23, 36, 65, 32
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