用简便方法计算:(-60)x(-1⼀4)-0.25x24.5 (-4^1⼀2)x(-25%)!

2026年09月22日 19:20
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(-60)x(-1/4)-0.25x24.5+ (-4又1/2)x(-25%)
=60x1/4-0.25x24.5 +4.5x25%
=(60-24.5+4.5)×1/4
=40×1/4
=10