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МатематикаВопрос:
15. Calculate: 54 : 9 + 7 × 4 49 : 7 + 6 × 3 72 : 9 + 4 × 5 40 : 8 + 5 × 4
Ответ:
Решение:
- \[ 54 \div 9 + 7 \times 4 = 6 + 28 = 34 \]
- \[ 49 \div 7 + 6 \times 3 = 7 + 18 = 25 \]
- \[ 72 \div 9 + 4 \times 5 = 8 + 20 = 28 \]
- \[ 40 \div 8 + 5 \times 4 = 5 + 20 = 25 \]
Ответ: 34, 25, 28, 25
Похожие
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- 11. Calculate: 60 : 6 + 70 0 : 9 + 38 72 : 8 + 63
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- 15. Calculate: 8 × 7 - 48 : 6 6 × 4 - 18 : 3 7 × 9 - 14 : 7 8 × 6 - 25 : 5
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- 19. Compose and solve examples based on the pattern: 6 × 4 = 24 4 × 6 = 24 24 : 6 = 4 24 : 4 = 6
