195.8-35.6-35.8-64.4简便计算

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195.8-35.6-35.8-64.4简便计算

195.8-35.6-35.8-64.4简便计算
195.8-35.6-35.8-64.4简便计算

195.8-35.6-35.8-64.4简便计算
195.8-35.6-35.8-64.4
=(195.8-35.8)-(35.6+64.4)
=160-100
=60

195.8-35.6-35.8-64.4
=195.8-35.8-(35.6+64.4)
=160-100
=60
所谓简便运算其实就是把有相同小数的放到一起

195.8—(35.6+64.4+35.8)_____195.8—135.8_____60

195.8-35.8--35.6-64.4
=195.8-35.8-35.6-64.4
=(195.8-35.8)-(35.6+64.4)
=160-100
=60