小数乘法简便计算【习题】

1、小數采出简便计算()0.25X8.5X412.5X812.5X0.96X0.80.25 X 0.73 X 44 36 X0.25X16.2X4361.25X2.5X323.2X0.25X12.50.25 X(1.25-0.125)X84.8X10.13.6X1020.39X1990.32X4033.53.65X10.10.85X9.93.72 X 3.5 +6.28 X优质资料15.6X2.1-15.6XL14.8 X 7.8+ 78X0.5256.5X99 + 56.5小数柬出简便计算（二丿优质资料7.09 X 10.8-0.8X7.09L87X9.9 + 0J874.2X99+ 4.23.

2、83 X4.56 +3.83 X5.449.7X99+ 9.7275 X 3.7-7-5 X3.73J4XO68 +31.4X0.0327-2 X 02 +2.4 X 1.45.4X11543.9X2.7 + 3.9X7.312.7X9.9 +7-74X (2.8-.3) +15X2261.2723X16+23X23+233.65X4.7 -363X0.37101X0.87091优质资料X87小數采出简便计算（三丿46X57 + 23X86X7.610.7 X16.M5.1X 10.77.6 X 0.8+ 0.21.28 X 8.6 +0.72 X 8.610110.6X035-9.6X035

3、8.9XL010.65 X48X0.56+ 44X0.480.279X343+ 0.657X2790.264X519 +264 X0.4819.16XL53-0.053X91.60.125X9612.5X10.8(20 - 4) X优质资料0.2545X21-50X2J45X1.58 +5.5 X15.825X7.3X0.453 X 10.13.7+037X73小数柬出简便计算()4.2 X 6.51 + 3.49 X 4.2257.3 X 0.42.7 X0J25X9612.5X10.8<20-4) X0.253.65X1O.145X21-50X2.145X1.58 +5.5 X 15

4、.89.99 X 2.22 +333 X3.343.7X1.4X0.0572X0.81+10.4L4X25+3.457.6 X 0.8 + 0.2 X 7.60.85 XL5X1021.25 X 0.7 X 0.89.91.28X8.6 + 0.72 X 8.625 X 0.96 X 0.810.6 XO.35-9.6 X 035小數柬法简便计算（五丿8.7X99X320.8X 12.5 - 1.25丿1.25X0.4X80X2.51.25x2.5优质资料5XLO3XO.232XL250.45X9915.6X2.1-15.6X1.10.25X16.2X4(125-0.125)X8 OX 10.

5、13.6X102101优质资料3.72X3.5 + 6.28X351.87X9.9 + 0.1874.2X99 + 4.24.8 X 7.8 + 78X 0527.0956.5 X99 + 56.57.09 X 10.8 - 0.8 X3.83X4.56 +383 X 5444.36X125X89.7X99+ 9.727.5 X 3.7-7.5 X3.7小數汞出简便计算（長）3.2X0.25X1230.25X360.25 X0.73X43J4X0.68 + 3L4X0.0327.2 X0.2 + 2.4X 1.48.9X1.010.65 X7.74X (2.8-t3) +L5X2263.9X2.73.9X7312.7X9.9 + 1.27优质资料5.4X1V5.42.3X16+23x23+233.65X4.7-36.5X0.3746X57 + 23X8