。8x1.17x1.25 0.25x49 0.25 0.125x56 46x0.46 54x0
脱式计算能简便的简便计算。8x1.17x1.250.25x490.250.125x5646x0.4654x0...
脱式计算能简便的简便计算。8x1.17x1.25 0.25x49 0.25 0.125x56 46x0.46 54x0
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8x1.17x1.25
=（8x1.25）x1.7
=10x1.7
=17
0.25x49+0.25
=0.25x(49+1)
=0.25x50
=12.5
0.125x56
=0.125x8x7
=1x7
=7
46x0.46+54x0.46
=0.46x(46+54)
=0.46x100
=46
=（8x1.25）x1.7
=10x1.7
=17
0.25x49+0.25
=0.25x(49+1)
=0.25x50
=12.5
0.125x56
=0.125x8x7
=1x7
=7
46x0.46+54x0.46
=0.46x(46+54)
=0.46x100
=46
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