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1、一
0.75+4.25= 4.25= 4.7+2.3= 6-3.4= 0.75100= 5.6100= 2.54= 10-9.25= 0.061.5= 0.30.5= 0.70.8= 1+0.01= 0.10.01= 2.10.7= 1-0.34= 0.175+0.0225=
80.125= 5.6+3.8= 0.62-0.32= 0.020.5=
二
0.750.25=
2、 16.84= 0.1100= 6.30.9=
0.258= 0.042.5= 10.01= 0.1+0.01=
0.630.9= 0.6+0.54= 8.9-0.9= 0.962=
5.9-2.5= 4.52= 3.63= 0.1258=
0.531000= 72.80.01= 1125= 1.20.2=
三
10.01= 480.6= 200.2= 10.4=
9.633=
3、 7-0.23= 4.80.3= 7.2-0.8=
1.40.5= 29100= 6.30.7= 6+2.4=
12.58= 8.90= 0.783= 0.350.5=
9.360.9= 1000.4= 0.81+0.09= 0.40.9=
四
10-5.4= 420= 3.5200= 1.5-0.06=
0.7515= 0.40.8= 40.25= 0.36+1.
4、54=
1.0199= 42035= 2512= 1350.5=
+= - = += - = 1- = += - = +=
五
-= ++= 1-= -= -= += -= += ++= 1--= -= +=
+= += -= -= -=
5、 -= +=
六
8.9-(3+0.9)= 78= 1.5+2.45=
21.7+21.3= 0.4101-0.4= 1.250.70.8=
0.79+0.7999= 15+15= 0.89101-0.89= 2-0.64-0.36﹦ 1.1-2.727= 12.411-12.4= 1.253.30﹦ 20-3.7-7.3= 50.751.50.75=
1-0.10.1=
6、 60.1258= 10.410.4= 37.299+37.2= 2540.254=
七
95-1.95﹦ 6.8-2.43= 0.60.3+0.5= 1.9+5.151= 1.80.90.5= 12-0.054= 10.010.1= 7.2-1.2+6.7= 253.30﹦
0.62.5= 70.03= 12.52.5= 2.80.3= 1.850= 641.6=
7、0.480.2= 5.40.27= 10-0.13= 4.50.01= 0.97+10.7=
八
0.75100= 5.6100= 2.54= 10-9.25=
0.061.5= 0.30.5= 0.70.8= 0.10.01=
2.10.7= 1-0.34= 0.175+0.25= 80.125=
5.6+3.8= 0.62-0.32= 0.020.5= 0.750.25=
16.84= 0.1
8、100= 6.30.9= 0.258=
九
0.042.5= 10.01= 0.1+0.01= 0.630.9=
4.52= 3.63= 0.1258= 0.531000=
72.80.01= 1125= 1.20.2= 10.01=
29100= 6.30.7= 6+2.4= 12.58=
8.90= 0.783= 0.350.5= 9.360.9=
十
0.4101-0.4= 1.250.70.8= 0.79+0.7999=
15+15= 0.89101-0.89= 2-0.64-0.36﹦
1.1-2.727= 12.411-12.4= 1.253.30﹦
20-3.7-7.3= 50.751.50.75= 1-0.10.1=
60.1258= 10.410.4= 37.299+37.2=
2540.254= 95-45﹦
4