7.3×0.64+9.36简便计算 20
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7.3×0.64+9.36
=(1+6.3)×0.64+9.36
=9.36+0.64+6.3×0.64
=10+6×0.64+0.3×0.64
=10+3.84+0.192
=14.032
对否!!题目有点变态!!
=(1+6.3)×0.64+9.36
=9.36+0.64+6.3×0.64
=10+6×0.64+0.3×0.64
=10+3.84+0.192
=14.032
对否!!题目有点变态!!
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7.3×0.64+9.36
=7.3×0.64+10-0.64
=(7.3-1)×0.64+10
=6.3×0.64+10
=4.032+10
=14.032
=7.3×0.64+10-0.64
=(7.3-1)×0.64+10
=6.3×0.64+10
=4.032+10
=14.032
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=7.3X0.8X0.8+11.7X0.8
=(5.84+11.7)0.8
=17.54X0.8
=14.032
=(5.84+11.7)0.8
=17.54X0.8
=14.032
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