1、12、计算周长用()单位,计算面积用()单位。13、往返两次是()趟;对折三次是()段;6个来回是()趟。14、最大的两位数是();最小的两位数是();他们的积是()。最大的三位数是();最小的三位数是();他们的商是()。15、面积相等的长方形和正方形,周长()相等;周长相等的长方形和正方形,()的面积大一些。16、填单位名称小明体重23()一块面巾纸面积4()课桌面的面积30()教师占地面积60()一个信封面积175()课桌高8()一块地砖面积9()铅笔盒长18()方桌面面积66()数学书封面面积3()黑板面积3()一个兵乓台面积4()邮票面积6()小红脚掌面积2()会议室面积200()花
2、园周长100()旗杆高8()小红家住房面积78()床单面积()一层楼高3()一块橡皮的面积是4()游泳池占地面积1500()练习本封面面积540()小兰书房地面面积15()17、小数点左边第一位是()位;第二位是(一位是()位;第二位是()位。小数点加减法计算题6.14+3.83=7.93-1.64=5.23-2.36=3.44+3.36=位;小数点右边第)7.74-5.85=9.35-4.74=38.63-3.48=1.16+4.77=8.17-5.26=2.26-0.86=4.93+4.75=76.55+4.68=31.1+4.5=31.9+3.4=3.45+4.6=4.45+54.5=3
3、.83+5.55=2.75+1.3=39.4-2.75=67.3-1.26=61.9+6.2=67.1-6.6=46.8-2.8=47.6-2.15=44.4+1.4=1.7+9.66=43.3+6.3=64.4+8.67=55.5-1.9=38.9-5.55=0.70.9=0.80.6=8.243.76=4.13.8=0.782.2=140.78=14.60.34=1.38.56=0.80.55=40.04=10.03=30.53.05=0.80.45=50.08=3.250.75=8.656.31=107.64=13.68.46=0.991.1=100.1=1 .50.510.92.30.
4、60.90.81.90.9=3.5 2.4=0.360.640.960.37.53.18=0.510.37=40.82=5.264.75=133.9=8.047.4=0.680.06=5.20.48=10.73=3.64.8=0.780.28=20.99.7=100.09=3.80.12=0.010.1=4.95.1=4.70.47=8.77.8=26.7147.2=801.621.9=10019.2=15.782.45=33.49.48=口算2.1+0.2=3.6+1.6=3.7-0.9=3.5+0.2=1.9-1.1=1.2+4.5=7.3+3.2=1.9+6.2=1.5-0.5=2.3+
5、0.6=1.9-0.9=0.6+0.4=4.1+0.8=3.4+1.2=3.7-2.9=0.3+0.7=7.5-0.5=2.1-0.2=1.2+0.3=4.5-2.3=13.5-0.6=5.6-3.9=4.5-2.1=1-0.9=0.9+0.8=3.5-2.4=7.9-0.3=2.3+0.7=7.2-3.5=2.3-1.2=6.5+1.2=2.2+5.3=2.3-1.7=1.5+4.3=1.1+4.7=3.5-0.6=7.4+1.2=5.2-3.9=8.9-6.2=1.7-0.5=2.3+0.8=1.3-0.9=2.6+0.4=7.9+8.2=6.9+6.4=3.4+8.6=8.3+2.8=9
6、.8-4.8=7.2-3.7=4.8-3.3=7.7-4.9=4.8-3.8=10.5-9.1=1.4-0.9=4.9+0.8=7.5-2.4=3.9-0.8=5.2+5.5=5.4+6.7=5.9+4.3=2.8+8.9=6.8-4.4=8.4-6.6=5.8-4.8=6.1+2.6=8.7-5.3=6.3+1.6=8.7-5.5=2.7+6.4=1.7+7.3=6.7-2.2=5.7-3.9=9.6-8.8=5.6-2.7=3.6+5.6=9.0-5.9=3.9+2.4=5.5+2.8=9.5-4.6=2.5+6.4=4.5+2.2=7.4-4.8=9.4-4.4=1.4+2.2=6.2+
7、3.3=4.3+2.8=2.3-1.4=1.11552.720887.6-3.7=4.9+0.5=4.9-1.3=8.6-3.7=3.5+5.1=7.5-2.7=3.5+1.9=5.4+5.5=4.4-2.3=2.3+4.9=3.9-2.4=7.3-5.7=3.3+2.2=3.308444.315035.936296.640077.60938.1554769.4032610.53207811.1079120212.100028012.300200528013.16948814.1864832415.87587618616.45017.38036418.856819619.5841720.425
8、21.7821022.564623.125824.415125.4859626.6038728027.208830728.5604180929.1000098730.20542531.202832.700816833.43220434.35035.4505336.84145337.12820338.160839.43240.150341.358042.284843.322444.642045.3.143.1646.432628547.30824348.25433649.230221145650.64035051.3004652.2150512053.80515866654.15055.99911156.2545057.8012558.89779859.75360.2345661.555-4863=62.1201063.59632164.120555565.7866.24512567.812550068.450969.2551270.52071.6272.7484073.100071674.875.2562876.75577.123124578.56401279.55511155580.125125
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