小学四年级数学小数加减乘除口算题

1、小学 四年级数学小数加减乘除口算题38432=1846 T0=46839=146020=502=78424,5 14=49.5 3=0 T53=42芍=374 T0=73用=104=1.2 X 3=2-0.8=10.7-5.7=0.52+0.08=2 + 5=8X0.030.01 X 100=30X0.01 =0X1.22=1.6 X 5=3.2-0.9=15.3-10=3.3+7=6-10=0.86+2.14=0.37+4=0.54 -0.6=0.26 XO.3=1-0.05=20X0.4=2.8+10.2=7-0.9=0.55+0.3=0.8+0.2=16-0.4=0.14 X 5=2.5

2、 X4=3.2 -0.8=0.45+0.55=6.4-8=0.1 X9.2=11-100=1.01 X9=3.3 X 10=0.65 X 5=0.1 X7=32.5 +0.5=2.58 +0.2=0.7 + 7.32=6.3+7=8X1.8=0.3+4.44=2.08 义 7=10 + 8=0.8 + 7.62=0.12 X8=4.2 +0.1 =1.6 X 3=1.2 X0.6=100+200=6.2 X 0.3=0.6 0.7=2.8+70=0.9 X 0.4=2.1 +7+0.1 =5X2.1 +2.1 =2.5 X 4X0.5=50X0.04 +420=3.4 +0.1 -21 =10

3、0X2.1 X0.03=6.9-3+ 19=3.7 + 1.26 + 0.74=2.34 -1.34 X0= (1.5 +2.5) X0.77= 31-0.25 -0.75= 34.1 +21.5+0.9=9.7 X 12+0.3 X 12= 38X0.01 +0.02= (1.2 +0.16) X0.1 = 6.3-9= 9-5=4.3+2.7 = 0.75+0.25=4 0.26=0.35+2.7 =4.6- 1.9 =0.83-0.3 =3+0.05=7.23.8 =0.07+0.6 =1.39-0.39=10-5.4=8.2 -1.9=1.2-4=3.44 +0.56=9.9-3=0.

4、6 X 9=4.2 -0.8=7.34 +2=5.4 + 1.8=2.7+30=7.34 -2.14=1.01 X5=510 100=3.74 +4.26=2.4 义 8=3.2+0.04=0.54 +0.9=0.4 X2.5=0.16 +0.3=3.18 X 100=41 X 0.4= 0.86 +0.02=0.08+5=1.8 X30=800 0.4=1.2+6=3.6+40=0.03 -0.01 +0.3= 1.25 X8X4= 3.6 +5.8 +4.2=6.8 X20-5= 0.34-17-0.02= (1.5 +0.5) -2=0.8 X 1.25 X 15=0.24 -4X6=0

5、.9 -0.3 X7=30-0.2 -1.5=9.8 -2.9 -3.1 =1.02 X8-0.16=0.25 X 0.4 -0.1 =0.42 X4X0.25=4.08+0.3=9.3 -3.5= 190-0.2=3.6 -0.3=1.2 X 0.4=50.5 -5=4.2 -0.8=0.8 X 0.4=0.8 -0.1 X0.5=2.8 -0.7 X20=12-6.2=5X(3.2 -2.6)=5.4 + 0.9 +0.8= (1.4 -0.8) -0.6= 555-0.5=3.26 -2X0.01 = (5.1 -2.7) -0.6= 7.4 +3.6=2.5 X 40=1.35 X 2

6、0=0.56 -0.28=6.1 -2.08=5.2 X 8=7.2 -40=4.3-0.01 =0.06 X0.8=6.52 -5.12=3.6 + 1.8=0.54 X 4=0.72 -8=9-2=50X0.3=0.12 X 100=6-2.09=7X0.8=10.1 X6=7.6 -0.7 -0.3=1.25 X 8X0.74=1.8 +2.2 +6.4=0.6 X5+0.4 X5=4.27 -0.6 -0.4=3.6 +0.8 +0.2=8.54-1.7-2.3=1.05 X0.7=0.42 +0.58=40.3 -9=42.5 +5=80 + 0.4=0.75 X0.2=7X0.6=

7、7.2 +0.5=80-2.6=7.8-6.65=4.02 义 300=9.8 X 10=12X0.5=6.1 +2=6.8 +4.2=24.32 +8=2.5+25=0.9+0.99=400+0.1 =4.5 义 3=3.1 X0.5=0.83+0.2=2.02 X 9=30.3 +3=2.74 +2=6 + 0.02=2.76 -0.36=0.06 X0.9=5.8 +3.4=32+0.7=25X0.01 =4.1 X0.5=19.04 +2=0.74 -0.24=36.05 +5=4.7 + 1.9=3.46 X 11 =3.2 + 64=8.1 +3=0.9 义 0.6=0.8+0.0

8、4=0.364 X100=16+1.6=7.8 +0.2=2.4 +4.8=0.125 X8=7-1.34=8X0.25=9X0.36=0.37 义 10=2.9 0.6=0.8 0.7=5.3 -2.9=2.8 + 13.5=17.2 +2.8=8.4 +4.2=1.7 X 3=8.3 -3.3=3.6 +6.4=0.84 +6=0.7 X5=5.6 +3.6=300 X 1.2=6.25 -5=720-8-0.1 =0.75 X4-7.5=2.5 X 0.7 X4=0.9 X 100-3=2-(6.4 +4.6)=2.8 -0.7 +6=19.6 -0.2 -5=7.86 +7.86 X9

9、=0.25 +0.75=12X0.5=16-1.6=5.4 -1.8=25X0.04=10-5.6=1.25 X 80=1.23 -3=8-2.6=63-0.09=6.2 -0.2=7.8 +2.2=5.4 -0.9=0.44 X 2=0.25 X 40=0.2 X 0.5=6.4 -3.2=7.5 + 5.4=0.01 X0.9=42-0.7=0.7 + 12.4=9.9+0.51 +0.1 =7.3 X 2.5 X4=0.6 X 5+0.4 X5=6.02 X 0.3 + 0.3=32.1 +2.5 X 0.4=45.7 -5.5 X6=10.21 X3-10.21 =45.7 -5.5 X6=10X0.6 -0.6=13.7 X0