题目内容
【题目】简便方法计算
60-(12.87+0.75) 95.6-(26.3-8.3)
0.9+1.08+0.92+0.1 2.75+6.89+3.25-3.89
【答案】46.38 77.6 3 9
【解析】
60-(12.87+0.75)
=60-13.62
=46.38
95.6-(26.3-8.3)
=95.6-18
=77.6
0.9+1.08+0.92+0.1
=0.9+0.1+1.08+0.92
=3
2.75+3.25+6.89-3.89
=6+3
=9
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