摘要:25× 85+46+54-25 =25×40+4 = =1000+4 =100-100 =1004 =0
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(2008?龙湖区)计算.(能简算的要简算)
1375+450÷18×25 18÷1.5-0.2×0.7 24×(
+
-
)
×17+8÷
20.21-3.55-6.45
×[12÷(
+
)].
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1375+450÷18×25 18÷1.5-0.2×0.7 24×(
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| 计算(能简算的要简算) 4×8×1.25×25% |
37.5%+(
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2.5×
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