人教版六年级下册口算练习题

1、0.6 X40%=13 X40%=0.6 X50%=0.45 X2%=102:51 =4.9:1.4=720:180=0.25 X40%=1.25 X8%=10 X4.5%=0.7 X6%=30% X7=46 +23%=72 X8%=3.2 X0.08=3.5x+3x=0.7 X11%=12 +3%=10 +0.5=50% +9=1 30%=97%+56%=87% 28%=296 +100=99 X99+99=31 X9=49.75-0.25=23.6 X5=73 X100%=9.8+0.2=15 X(40+2)=19.8 X(100-10)=27 X3=692 X0.5=960兀与0=75%

2、 兀+0.25=41九义80=65% X2=99 X20=3.5 X0.4=85+3 1 =43+5 1 =2.4 X5=103 + 103=0.5 + 3=0.4 + 0.25=7- 51 =65-6 1 =87 - 4 3 =32 + 92=32+6 1 =52+8 1 =5.6 +0.01 =32 51 =0.25 + 0.5=41 -61 +4 3=103 + 103=65-6 1 =52+8 1 =0.3 X 30=8X0.7-0.5=51+ ( ) =100250+ () =4005.7 -0.6=4X0.09-0.3=150+( ) =200440+ () =5600.9 +0.

3、1 =0.8 X 0.3+0.2=410+( ) =500380+ () =6207X0.9=10X0.4-0.1 =()+26=7351- () =82.2 + 0.5=0.7 义 2+0.7=240+ () =370320- () =1100.66 -0.6=6X0.5+0.4=()+300=630340- () =1800.66 0.06=0.2 X 3-0.6=()+180=300()-43=80.4 义 0.7=2.5 X 7.4 X 0.4=150+() =280()-140=2900.4 义 0.2=8X3.9 X 0.125=620+ () =900()-360=1400.3

4、X 0.25 X4=540+ () =62090- () =180.5 + 0.9=0.8 X 0.4+0.01 =0.8 义 3.3 义 1.25=()+310=480()-270=4406X0.9-0.2=2.7 义 12.5 X0.8=180+() =40062- () =180.06 X 10+0.5=0.5 X 3-0.6=710+() =9000.8 X 5-0.6=9800 600 =240 -30 =0.18 +0.1 =320 X10 =350 +70 =2.8 +5.7 =2.8 X0.3 =7.5 + 5 =2.8 X4 =80 + 90 =170 +2=60 39 =6

5、000 +4000 =1.8 +2 =1.8 X0.3 =8.5 -3.9 =8.2 + 0.5 =12.6 X 8=720 +90 =6.4 + 3.7 =8.3 -0.7 =0.8 +0.9 =5000 + 1000 =1.9 X0.5 =550 +5 =0.85 X 0.4 =0.32 +0.16 =8.2 +0.2 =6.6+ 5.7 =0.56 + 0.46 =1.9+0.01 =60 X 500 =810 +90 =4.9 1.2 =120 +30 =42 +45 =0.95 -0.21 =5X5.6 =108 25 =9 + 0.9 =9 + 0.3 =8+ 16 =0.6 X0.8 =0.25 -0.11 =14 +42 =2.6 X4 =0.89 +0.16 =16 X6 =6.6 +0.2 =1.7-0.89 =320