北师大版四年级下册数学计算题

北师大版四年级下册数学计算题2020X0.5=2020X0.5=一、口算4.8-2.8=12.3+11.2=3.66—1.25=0.96-9.7=5-0,42=0.75+0.25=0.01X10=1000=53.8X10=0.1X1000=0.618X100=0.01+1000=4X3=0.13X2=3.6X2.4=0.6X0.7=1.1X0.4=0.5X1.8=0.7X2=0.3X0.6=1.5X0.2=4.8:1.6=0.39+3=1.3+2.5=35.8-13.3=1.5-0.5=1-0.9=1.9+8.1=0.17+0.33=0.01X50=0.09X10=53.8X100=36.9+10=18.1X10=43.21+1000=4X0.3=0.13X0.2=36X2.4=0.9X0.1=0.02X7=1.5X1.8=0.7X0.2=15X2=3.8X4=1.5X5=7.2+4=3.11+2.22=1.25+2.41=0.36+0.64=1—0.56=4.3+2.31=0.2X0.4=0.01X100=0.09X100=53.8X1000=3.14X100=9.87+10=0.3X0.2=0.4X0.3=36X24=3.6X24=0.8X5=0.3X1.3=7X2=3X6=1.5X2=2.5X4=10-4.5=6+5=26.2+13.1=2.1+0.6=0.7+0.23=0.01X0.09X1000=1.414X10=1.4X100=13X3=0.36X2.4=0.3X0.2=0.3X6=4.84.8X1.2=4.84.8X1.2=二、竖式计算45.2—33.5= 38—33.4= 8.25+1.55= 7.3—2.25= 10—2.45= 3.7+2.36= 10.2—8.75=15.4+2.97= 5.94+10.7= 11.65—7.39= 10—3.14= 11.7+40.3= 3.15—2= 8—7.23=3.8+3.54=1.3X0.25=3.05—2.9=1.44X3.98=85—34.7=1.44X3.98=0.7X7.8=1.36X0.8=0.32X0.8=0.78X0.04=0.32X1.2=4.8X0.25=9.8X0.5=12.912.9+6= 7.42+7= 8.2+5= 0.98:2.8=12.912.9+6= 7.42+7= 8.2+5= 0.98:2.8=9.8X1.3=654X0.9=2.42X1.1=3.14X1.5=2.6X0.8=2.15X2.1=2.1X60=0.12X50=2.6X0.5=1.2X60=2.13X4=4.8X0.3=1.3X2.2=9.6X0.8=3.25X1.8=4.8X1.3=4.8X0.9=9.34X1.4=0.7X9.32=1.87X2.3=0.15X0.63=1.8X0.85=48X0.15=0.86X1.2=0.125X8=12X0.16=4.24.2+1.2= 0.16+2.5= 72.9+0.9= 4+3=15.9+15= 26+4=124-16= 324-5=54+36= 4+25= 7.79+95= 435+12=354-56=134+4=610・16=182+52=15.64-6=8.54:0.7=35:0.5=12.6^0.3=0.768^1.6=8.4:0.56=37.1+0.53=2.7・7.5=0.78+2=4.06+0.58=0.7+0.25=32+0.08=6.21+0.3=0.21+0.025=6.3+0.42=0.012+0.25=41.6+2.6=7+0.35=0.63+0.7=30.6+4.5=0.4+0.5=72.9+9=4.2:0.12= 0.16+0.25= 73+3= 9.4+11=3+8= 14.2+11= 0.4・9= 10^9=14-7= 24-4=5+6= 4.484-3.5= 13.3+14-7= 24-4=0.95= 12.3+1.5= 7.2+0.64= 24+1.5=54.654.6：0.91= 1.25X0.72= 9.6X4.5= 21：0.75=54.654.6：0.91= 1.25X0.72= 9.6X4.5= 21：0.75=42.7+7=0.23+5=82.5:15=7.8:75=25.2:18=0.448+32=21.6：12=2.88:1.52.88：1.5=46.23：23=0.14：0.08=19.2：1.6=1.92：0.16=0.192：0.016=5.3X2.4=9.69.6—1.64= 62.4+7.62= 8X1.57= 8.95+5=9.69.6—1.64= 62.4+7.62= 8X1.57= 8.95+5=13.3X0.95=12.3X1.5=9+3.6=4.2X3.2=117+36=1.8X5.5=（保留二位小数）8.09X6.7=600+8.09=1.79X1.2=45.4+15=4.48X3.5=8.84+8.84+1.7=9:0.36=62.9+17=三、计算并验算12.6+0.28=2.14-0.56=4.2X3.2=1174-36=1.8X5.5=15-(13+3.9) 4.615-(13+3.9) 4.67.41-(2.96+3.04)四、脱在计算9.43-(8.65+0.40)-1.75+2.084.6+12.3+5.85-(4.19-2.83)4.28+0.534.28+0.53—3.37 3.2+1.27—2.49 1.54+2.08+3.624.28+0.534.28+0.53—3.37 3.2+1.27—2.49 1.54+2.08+3.629.5+4.85—6.365.6+2.7+4.44.6-(1.75+2.08)4.02—3.5+0.9870.8—1.25—1.755—4.19+2.832.6+1.4X3(8+0.8)X1.252.5X0.6—1.8X0.52.5X2.8X42.5X13+0.90.25X13.7X0.41.83+3.79+0.1722—1.6X7 0.89X4.8+0.89X5.21010-0.34-0.66 12.8+2.04X9.5 6.15X9.4—42 4.5X3.6+5.2X0.354.5X0.9+5.5X0.935.7+14+305.4:(2.7X4) 9.4X[0.96+(5.4+0.9)] 52+6.5+26X0.371.6X(2.25+10.5+1.5) 90+(3.6—1.8)3.4X7.8+3.90.36+[(6.1-4.6)X0.8] 54+(3.94+6.86) 0.175+0.25X4 (3.2+0.12)+0.8 0.175+0.25X0.428.7+7+4.5964-(15.4-12.2) 2.4X34-0.18 94-[0.3X(8-6.5)]7.8+4.56+2.2 12.7+12.5+5 0.4X99+0.4 3.6X4-2.55.01-1.9+4.9978:0.65X6.4-0.65X5.45.01-1.9+4.9978:0.25^0.4

五、解方程x—19=2 x—12.3=3.8 4x=3803y=45 1.6x=3.36 47+x=476y=544x=42 6m=42 y—21=146y=54x+7=12 a—18=26 1.2x=4824n=962x+20=803x+6=150.5x—2=24 x+3x=18024n=962x+20=803x+6=150.5x—2=24 x+3x=1802x—x=44m-2m=48 5y+y=96 y+y=33x+3x=72 5x—2x=123 y+3y=366x—3x=4.8 3m+2m=65