题目内容

1
2
+
1
3
=		4-3=1.25×16=170×14÷17=
19×21=0.01-0.001=8+8×9=1-
3
8
=

1
2
+
1
3
=
5
6
4-3=11.25×16=20170×14÷17=140
19×21=3990.01-0.001=0.0098+8×9=801-
3
8
=
5
8
故答案为：
5
6
，1，20，140，399.0.009，80，
5
8
．
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相关题目
计算下面各题，能简算的要简算．
1
2
+
1
5
-
1
4
=
4
3
-
1
8
+
7
12
=
2
9
+
4
5
+
7
9
+
1
5
=
2
3
-
5
6
+
1
3
=		2-
2
7
-
5
7
=
5
8
-(
5
8
-
1
2
)=
计算下面各题．
2
4
+
1
4
=
3
4
+
1
4
=
1
6
+
3
6
=
4
5
+
1
5
=
2
5
+
1
5
=
5
6
-
1
6
=
3
7
+
3
7
=		1-
3
5
=		1-
7
9
=
直接写出得数．
12+48=		2.4×5=78-0.8=6.3÷0.1=
1
3
-
1
4
=
1
2
+
1
3
=		8-
7
8
=
6
7
÷6=
0÷
3
5
=		10.1-1=
3
5
×15=		2.3×4=
3
8
+
1
4
=		6÷
7
12
=
6
7
-
6
7
=
直接写出得数．
708-99=		0.25×30=1÷0.375=2÷10%=
1
5
+
1
4
=
5
9
×2÷
5
9
×2=		12-1.1=0.63+0.25+0.37=
比20吨少
1
4
吨是______吨；20吨比______吨多
1
4
．
直接写出得数．
1
7
+
6
7
=		12×2.5=9
11
7
÷1=		1.45-0.75=1.4-
3
5
=
7÷1.4=
5
6
×8=		0.5+
1
3
=		1.3×7+6.7×7=9
11
7
×0+
1
5
=
直接写出得数．
1
4
+
3
4
=
5
8
×
2
3
=
6
7
÷6=
3
4
×8=
1
4
+
3
5
=
2-
2
5
=		0+
7
10
=
3
11
÷
1
3
=		1÷
5
6
=
4
5
-
3
4
=
直接写出的数
4
9
+
3
9
=
4
8
-
3
8
=
1
7
+
6
7
 880÷8=		19×5=
36÷3÷2=5×5+4=50-24÷4=300×30=
88+112=

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