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48乘以75加25乘以32用简便方法怎样做
人气:311 ℃ 时间:2019-10-19 03:37:50
解答
48乘以75加25乘以32
=16×3×3×25+25×16×2
=16×25×(3×3+2)
=4×4×25×11
=4×100×11
=400×11
=4400
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