4.3+4.3×9.9怎样简便运算
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![4.3+4.3×9.9怎样简便运算](/uploads/image/z/919202-50-2.jpg?t=4.3%2B4.3%C3%979.9%E6%80%8E%E6%A0%B7%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97)
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4.3+4.3×9.9怎样简便运算
4.3+4.3×9.9怎样简便运算
4.3+4.3×9.9怎样简便运算
4.3+4.3×(10-0.1)
=4.3+43-0.43
=47.73
4.3+4.3·10-4.3·9.9=
=4.3+4.3(10-0.1)=4.3+43-0.43