问题
解答题
4.7×3.6+5.4×
|
答案
4.7×3.6+5.4×
+5.3×3.6+4.6×1 2 1 2
=（4.7+5.3）×3.6+（5.4+4.6）×1 2
=36+5
=41．
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4.7×3.6+5.4×
|
4.7×3.6+5.4×
+5.3×3.6+4.6×1 2 1 2
=（4.7+5.3）×3.6+（5.4+4.6）×1 2
=36+5
=41．
