题目内容

(1)0.75×100=　　(2)78.96×1000=

答案：75;78960
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直接写出得数．
2.5+5= 2-0.25= 4.1-2.2+1.8= 9.8-0.08=
3.3+10.7= 0.6+1.51-0.51= 1-0.7= 10-0.01=
1.3+0.04+0.7= 0.35+0.75= 5.05-0.05= 2.48-1.48-0.52=
3.3×2= 2.4×0.5= 0.6×0.9= 0.2×0.3=
0.39+0.61= 10-7.2= 0.88+1.1= 0.75×4=
11-1.5= 4.48-4= 7.8-0.8= 2.8×5=
4×0.3= 4×0.25= 3.2+1.6= 10.6-5.2=
0.32+1.68= 8×125= 7.28+7= 0.8+39.2=
43+0.01= 0.4×2= 1.5×6= 1×0.04=
1.53-0.5= 1.5-0.6= 0.3+1.5= 95÷5=
0.65+4.35= 14-7.4= 11.2-9.8= 4.4×2=
35-25= 56-26= 45+15= 35-15=
38+28= 15+25= 12+12= 47-27=
13+23= 1-12= 14+14= 212+312=
14-0= 610-510= 1-23= 0+56=
78-38= 29+29= 58-48= 15+45=
0.9×125×8= 5.75+1.37+4.25= 0.43×10+5.7= 62-2.8-1.2=
2.7×4+2.7×6= 0.25×0.5×4=
脱式计算下面各题
（1）0.125×9.3×0.8；              
（2）9.83×1.5+1.5×0.17；
（3）（12+23.1÷0.75）×0.4；       
（4）2.8×10.1；
（5）[18.8-（4.5+2.7）]÷5；      
（6）50-13.5-6.5．
1
6
÷
2
3
=
3
4
÷
1
8
=
1
3
-
1
6
=
1
4
+
3
4
=
1÷
3
4
=
1
5
×
1
9
=
4
5
×
3
4
=
2
3
×
9
4
=
2
5
-
1
5
=
2
9
+
5
9
=		 10.1-0.89= 423-198=
0.68+0.42= 8.1-5.1= 0.081×10= 75÷10=
0.96÷0.8= 1-0.08= 3.5×0.01= 1.25÷0.25=．
直接写出得数．
1
3
-
1
4
=		 1÷
4
3
=
5
9
×
3
11
=		 0.32=
1-
1
3
+
2
3
=		 8÷
4
5
=
5×3.14= 1÷
3
8
=
75×10%= 7×8×（
1
7
+
1
8
）=

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