口算---小数乘法

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1、1.5x100=0.125X8=10x0.75=3.5x60=0.5X4=5.6x0.1=7.4X1000=1.1X5=3.5x3=3X0.5=3.5X2=51x0.2=0.7X4=0.4X8=1.2x3=2.1X3=0.5X0.2=8x0.03=5.2X4=2.8X0.4=0.01x100=1.1X8=0.32X500=30x0.01=9X0.8=3.5X200=0x1.22=1.5X2=0.4X0.8=0.6x5=0.2X5=4X0.25=0.26x0.3=0.7X0.8=1.01X99=20x0.4=2.5X0.4=1.6X0.4=0.14x5=2.3X0・3=4.9X0

2、・7=2.5x4=0.05X2=0.02x0.1二0.081x10=1.7X0・5=1.5x0.4=0.8X7=1.25X0.8=1.25x0.2=1.5X7=0.12X3=2.3X4=1.32X8=0.35X2=100x0.01=0.7X8=0.4X0.7=3.4x0.07=10.3X2=0.23X3=0.3X0.4二5X06=0.25X4=0.05x0.8=0.9X0.3=3.5X0.2=3.2X0.4=1.7x0.03=10X0.05=1.8X5=0.22x4=0.13X7=2.2X6=1.6x7=0.21X100=2.5X4=8.1x3二0.7X4=4.5x2=0.05

3、x2=0.05X4=3.4x0・4二1.4x6=4X0.3=0.65x0.2=7x2.3=12.5X8=1.2x0.8=60x0.03=0.4X50=5x0.7=0.12x80=30X0.55=0.43x5=9・9x0・9=2.6X3=9.4X0.2二1.8x3=4.1X2=43x0.01=4x0.08=7・5X0.1=3.72x0.2=8.3x0=3.5x0.01=1.9X4=6.3x3=0・5x0・4二4x1.2x0.25=0.95x10=2.5X4=0.125x80.19x3=0.05x4=1.8x40=2.5x5=0F3.5=8x5.1=0.04x0.5=3.99X1=

4、4.2X3=0.019x2=1.2X6=1.1x0.7=0.24x5=0.6X0.3=3.2x50=1.25x8=4.2X3=3・2x0.5=5x0.69=2x0.48=0.32X500=7.2x0.1=3x0.7=48X0.02=0.01x0」=9x0.04=0.8X0.5=0.25x0.4=18x0.5=2.8X0.4=1.25x0.8=60x0.5=4.5x2=0.22x102二0.5x20=7・2x0.8二0.081x10=0.25x40二6x3.4=0.8x7=5.4x0.01=1.4x0.5=1.5x7=12x1.1=0.75x100=7・2x0.2=0.02x0.

5、5=3.99X1=1.5x60=0.125x8二1.2X6=5x0.07=0.8x1.1=0.6X0.3=5x0.9=8.65x10=4.2X3=0・3x0.5=0.35x0.6=3・2X0.4=6.5X2=3.08x0.01=1.8X5=0.125X100=4.95x1000=2.2X6=4X0.25=6.9x0」=2.5X4=0.8X125=0・4x0.5二4.5x2=1.5X0.04=0.325x100=3・4x0・4二0.4X0.8=2.5x8=0.65x0.2=0.08X1.2=0.125x4=1.2x0.8=3.5x200二3.28x0.1=5x0.7=0.43x5

6、=9・9x0・9=7.2X0.2二9・4x0・2二1.8x3=1.5x60=43x0.01=4x0.08=5x0.07=3.72x0.2=8.3x0二5x0.9=1.9X4=6.3x3二03x0.5=4x1.2x0.25=0.95x10=6.5X2=0.125x80.19x3=0.125X100=1.8x40=2.5x5二4X0.25=8x5.1=0.04x0.5=0.8X125=4.2X3=0.019x2=1.5X0.04=1.1x0.7=0.24x5=0.4X0.8=3.2x50=1.25x8=0.08X1.2=3・2x0.5=5x0.69=3.5x200=1.7x0.03

7、=2x0.48=0.32X500=0.22x4=3x0.7=48X0.02=1.6x7=9x0.04二0.8X0.5=8.1x3=18x0.5=2.8X04=0.05x2=60x0.5二4.5x2二1.4x6=0.5x20=7.2X0.8二7x2.3=0.25x40=6x3.4=60x0.03=5.4x0.01=1.4x0.5=0.12x80=12x1.1=0.75x100=0.02x0.5=0.7x8=4.1x2=0.125x8=10.3x2=0.35x0.2=0.8x1.1=5x0.6=