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1、细心整理 口算323=603= 1810=0.007100= 6100=492=127=24100=3.136100=63.6100=434=725=2.6710=36.710=1.356100=324=825=0.136100=0.3100=2.310=口算149=3.142=4.44200=232.00=0.133=178=51.7=2.840=1.2580=0.67=204=2.54=1005.176=3.520=0.125=423=5.260=36.2=0.2540=1.220= 口算1.23=2.540=2.410=40.05=3.52=0.374=0.374=2.540=100.0
2、7=1.46=0.187=1.54=20.05=0.144=3.85=3.73=0.68=31.7=0.057=8.79= 口答它们的积有几位小数0.452.5=0.021.7=0.10.01=68.5912.23=0.360.2=0.2130.26= 0.30.3= 0.510.6=1.0060.3= 3.820.3= 1.33= 3.70.2= 105.20.2=2.710.4= 1.946.78= 口算6.80.1=4.88=2.142=1.10.8=0.520.1=40.40.3= 70.70= 0.752.20.3= 8.6 +1.4 5 = 计算2.48= 0.617=0.165=
3、0.592=30.67=9.70.2= 0.30.39=0.174=8.48=540.5=8.60.3= 0.0810=3.20.9=0.0177=80.25=0.50.610.2 = 0.244.52+0.245.48 计算9.40.3= 0.17+0.06=0.792=0.58.1=4.50.6=6.50.9= 1.02-0.09= 0.061.9=0.147=3.970=0.85= 0.83+0.6=1.60.7=2.80.3=0.89.7=9.45= 0.98-0.09=900.1=0.27.5=0.042.5=计算 1.90.9= 430.9=0.157=1.30.7=0.67.6=
4、4.40.2= 8.35=0.91.5=3.60.2=9.40.3=4.80.2= 7.80.3=0.320=650.4=2.90.4=1.20.8= 9.64=0.86.1=6.550=0.33.5= 口算 3.2-3.2= 2.80.4=0.40.8=3.5200=2.30.4=3.7+2.3= 0.32500=1.60.4=2.63=300.1=13.10.7=0.80.41.25= 7.50.12+2.50.12= 口算4.90.7= 3.50.2=0.40.03=2.73=0.250.4=1.64= 0.80.6=0.25100=302.3=1.362=203.5+6.5= 1.4+
5、3.68= 2.30.12= 口算1.50.6= 0.260.4=0.60.12=7.60.2=4.30.2=2.43=0.70.15=2.330=0.5170=6.40.4=2.543.2= 102 0.4-20.4= 1042.5= 9.95 口算762= 7217= 3.2610= 0.420.3= 5.620= 606= 9055= 435100= 3.52= 4.5100=573= 80040= 0.3100= 644= 3151000= 口算8.70.1=7.24=6.039=6.62=7.24=700.7=9.64=8.47=9.66=6.968=1.56=7.13=6.48=9
6、.99=0.753=2.34=8.55=9.17=5.73= 口算6.24=3.3+0.7=9.82=9.68=0.723=1.45=0.6+0.8=0.85=9.819=0.644=1.55=3.26-0.7=9.87=7.24=9.55=2.66=5.8-0.4=5.64=0.764=8.44= 口算0.6+0.3=6.50.3=40.5=3.50.5=810.9=1.3-0.4=0.660.2=3.60.6=4.90.7=7.20.8=5.2+3.8= 3.80.3=2.10.3=360.6=4.50.5=7.7-0.7=1.88=4.20.7=320.4=6.40.4= 口算0.423
7、=13.6+0.4=4.97=4.88=5.68=120.6= 38.6-8=2.46=6.37=0.243=0.70.6=17.3+0.7=0.423=7.28=8.10.9=2.54=6.4-0.8=6.55=6.030.3=5.60.7= 第六课时 商的近似值练习计算2.9+5.7=91.3=0.968=2.50.5=0.320.8=3.6+2.1=6.74=0.321.6=103=0.360.9=4.5-0.9=7.20.1=0.90.001= 30.5=6.40.4=7.3-0.2=9.92=1.80.6=0.360.3=49= 第七课时 带中、小括号的小数四那么混合运算新授计算6.
8、79-5.4= 2.40.5=2.40.3= 05.2=6.84=6.3+4.7=0.51.1=0.490.7=400.4=7.80.2=8.02+1.8=0.245=6.70.1=7.50.5=9.80.7= 第八课时 带中、小括号的小数四那么混合运算练习计算900.2=43.7-6.2=2.30.3=5.67=0.452=9.50.5=5.8+0.2=40.8=8.41.2=80.52=7.20.6=3.73+0.53=2.50.3=7.50.3=360.3=计算下面各题384160(75-35) 0.236.11+4.890.23 第九课时 我学会了吗？复习计算0.50.2=0.80.5
9、=0.5614=1-0.75=1.82-0.63=1.60.05=0.15-0.05=80.4=0.240.6=01.24=32.8+19=1.899=0.06+0.9=0.5117=1.80.8=2.530.441.2546 0.5(17.2-16.2) 0.02 第十课时 小数除法复习课计算3.6+7.8=1.10.8=7.90.2=6.90.3=9.90.9=4.3-0.2= 0.490=2.40.4=7.77=0.655=(9.2+4.380.73) 2.5 (3.8+1.5-3.8+1.2) 5.515.15(5.64-1.89) 0.4 14.640.6(0.31-0.25)第四单
10、元 珍稀动物简易方程 第一课时 方程的意义新授计算3.45=250.4=1.250.4=3.80.2=0.520.2=1.610=2.40.5=8.456100=6.30.7=3.78=1.49=17310=0.650.05= 1.70.3=1.20.6=1.50.8=2.50.5=0.855= 其次课时 方程的意义练习计算2.2-0.9=1.54=9.60.8=7.22.4=0.777=8+0.1=2.54=6.243=0.612=7.060.02=0.36+0.64=0.136=0.780.6=0.840.3=0.36=8.13-0.13=8.5100=930=9.20.4=0.91.5= 第三课时 简易方程新授计算20-2.5=0.180.3=2.80.4=9.68=9.20.6=30-21.8=0.24100=0.96=5.80.3=7.21.8=4.9+2.1=0.040.25=2.10.3=0.450.5=096=0.09+0.01=3.82=600.5=570.19=0.726= 第四课时 简易方程练习解方程选择两题写出检验过程x+8.3=22x-1.6=19.22.1+x=131.3+x=13x+0.8=3.2x-8.4=1.220-x=912-x=4x-3=
