2000-450⼀18x25用简便计算

2000-450/18x25用简便计算
2025-04-25 12:05:56
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回答1:

2000-450/18x25用简便计算
2000-450÷18x25
=2000-450÷9÷2x25
=2000-50÷2x25
=2000-25x25
=2000-625
=1375