六年级简便计算练习题答案(6页).doc
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1、-六年级简便计算练习题答案-第 6 页六年级简便计算练习题用简便方法计算下面各题。(90分,42052)1125997 998+1246 4+3.25 12(1+2) 4001258 25(378)=1125-(1000-3) =(998+2)+(1246-2) =(45)+()=12-21=400(125*8)=25*8*37=1125-1000+3 =1000+1244 =10+10=20 =10-1=8 =4001000= =200*37=7400 =125+3=128 =2244()12 12 34(2) 125=()*12 =2 =34234 =125*(8+0.8) =(4.35+
2、3.65)+(4.25+3.75)=3.4*(99+1)=*12 =()*2 =68+13 =125*8+125*0.8 =8+8=16 =3.4*100=340=1 =1*2=2 =81 =1000+100=110017.158.471.53 1734 2 =17.15-(8.47+1.53) =1743 = =*32 =22.3-5.3-(2.45+4.55)=17.15-10 =13-3=9 =* =1 =17-7=10=7.15 =()=(+)72 4.253(21) 11187.7 430.5 () =7272+72 =4+1-(3+2) =187.7*(11-1) =4357 =(
3、*)=11*6+7*4+5*3 =6-6=0 =1887 =(4357-1) =*()=66+28+15 =*100=50 =*=1092.42+4.5843 4.6+5.4 2.8+7.2+ (+)=2.42*+4.58-*1 =2*62*6 =(+) =4+3+6+5 =(2.8+7.2)+5+3= -=(2.42+4.58-1) =2*2*6 =8=3 =4+5+(3+6)=10+9=19 =2- =1=*6=8 =10+10=20 +2.25+ + + + 0.75+0.375 5-=4+2+5+7 =+ =+ =+(+)=+ =5-(+)=4+5+(2+7)=10+ =70- =+5
4、=5 =+(+)=2 =5-4=1=10+10=20 =14 =53+ - 4.25+6 0.5+62.5% +(-1.8)=(1+9+99+999+9999) =(+)=9*4+4* =*+* = =+(-1)=11107 =48-20=28 =(9+)*4 =*(+1) =1= =-1+ =10*= =15+=18(+) 22+2575%-70.75 63.5 +3.125+ 1125-996=2*4* =22*+25*-7* =*63-*13 =6*2-2*4 =+(3+)=1125-(1000-4)=*4*=10*=9 =(22+25+7)*= =*(63-13) =(6-4)*2 =
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