题目内容
【题目】脱式计算。
3.52×8.6+8.6×0.48 1.25×8.8 7.3÷4+2.7×0.25
【答案】34.4;11;2.5
【解析】
3.52×8.6+8.6×0.48 1.25×8.8
=(3.52+0.48)×8.6 =1.25×(8+0.8)
=4×8.6 =1.25×8+1.25×0.8
=34.4 =11
7.3÷4+2.7×0.25
=1.825+0.675
=2.5
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题目内容
【题目】脱式计算。
3.52×8.6+8.6×0.48 1.25×8.8 7.3÷4+2.7×0.25
【答案】34.4;11;2.5
【解析】
3.52×8.6+8.6×0.48 1.25×8.8
=(3.52+0.48)×8.6 =1.25×(8+0.8)
=4×8.6 =1.25×8+1.25×0.8
=34.4 =11
7.3÷4+2.7×0.25
=1.825+0.675
=2.5