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1、小数计算题1.1 口算题100道0.9 X0.3=4.80.8=1.6+0.4=3+ 0.5=0.36+0.6=0.75X0.1 =20X0.25=4.8+ 2=0.23 X 3=0.63+ 0.07=4.5+2.7=2.6X4=6.3 +2=2.40.08=9.8-8.9=0x 13.5=5.6 +7=4.50.2=45.6+1 =1X3.4=3.2 +0.4=6.7-2.3=2.5x 4=1258=2.4 +4=4.55=12.5+0.5=60.5=1.2 3=0.30.7=24.8-8=3.2+ 4=0.23 X 3=4.86=5.6+7=0.254=2X0.5=0.24+ 0.2=0.
2、48=6+ 0.02=1.3 X0.2=7.20.8=8X0.5=2.8+8=0.39 +0.03=0.10.1=3.2-2.9=21+ 0.3=3.14 X 2=1.80.9=5.6+0.4=0.36+ 0.03=2.8 X0.5=7.28=2.8+4.9=0+ 4.86=9.6+10=0.25x 6=4.80.4=0.7x 1.1 =80 + 0.5=4.5+2.7=2.6x 4=6.3+ 0.2=2.4 +0.08=9.8-8.9=0X13.5=5.6+ 7=4.5 X0.2=6.7-2.3=45.60.4+1.5=+ 1 =8.6-7=1X3.4=1+0.45=3.2+ 0.4=7X0
3、.9=0.78X0.1 =32.1X0.2=1.8-0.5=3.2 +32=0.36+ 0.09=3X0.5=2.1x 6=0.37 X 100=0.25X40=51.2=0.7X0.9=1.25 X 0.8=0.052=0.040.2=0.8X0.05=3.1 X0.3=0.165=0.90.7=0.14X0.3=1.2小数口算题1.7 0.03=1.870=5.510=2.6X0.5=0.12 X6=70.08=6+ 5=0.2+ 0.4=1.6 +0.8=4.2+ 2.1 =0.2X0.6=4.6+ 0.46=0.52 +52=7.1+ 0.1 =3.5X0.2=1+ 0.5=0.63+
4、0.9=0.99+ 0.1 =1.24=3.9X0.01 =2.3 X1.2=0.254=0.72+ 12=6.8+ 4=0.8 X12.5=13.80=100X99.5=0.81+ 0.9=-2 -小数计算题2.小数脱式计算和简便运算50道4.3 X2.1-7.67.8+ 12.5-(1.9+6.7)7.5 X 16.3+7.5 X3.73.08X 101-3.080.04 X 12.7 X 25087X 10.1-3 -9.7 0.819.73-0.01 X 97-8.035.4+ 1.5 X (4.3-3.7 )3.7 X 19.08-3.7 X9.0812.550-7.9 X5.33.
5、25X10.8 + (7.2-5.4 )1.25 4.3 2.44.7517.5+2.54.75+ 1.8 X (3.36-2.86 )0.22 X 1.5+0.92 +2.34.05小数计算题7.2+0.9-1.2 X52.5X1 + (3.1-3.05 )76.5+76.5 X 9925.8X 3.6+25.8 X6.415.52-1.6 X 5-5.74.8X 12-4.8 X23.6 + (1.2+0.6 ) X 0.53.141014.8 X (3.5-2.1 ) 一718.75-0.232-4.54(4.2+4.2 +2.1 ) -0.245.159.90.25 X (2.8+4.4 )1.20.15+(2.4-1.8 ) X206.28 + 0.8+58.8X 12.5-4 -小数计算题-6 -3.6 X2.51.25X (100+8)=9.4 X10.193.7X 0.32+93.7 X 0.68=3.9 X1.4 +0.356.48+4.8-323.242+ (5.25 + 0.25)60.8-367.51.25X3.2X0.814.51.221+2.5 +0.48.50.26+0.745.5 X 17.3+2.7 X5.510.01101-10.0112.5 X 0.96 X 0.80.258.5 4小数计算题- 7 -4.8 X10.10.32403