题目内容

15－3=12

25－3=22

35－3=32

答案：12;22;32
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0.36÷1.2= 0.78-0.3= 3.7×2= 0.4×0.5=
0.39+0.61= 10-7.2= 0.88÷1.1= 0.75×4=
11-1.5= 2.48÷4= 7.8-0.38= 2.8×5=
4×10.1= 4×0.25= 3.2+1.6= 10.6-5.2=
0.32+1.68= 0.8×125= 7.28÷7= 4.8+39=
43÷0.01= 0.4÷2= 1.3×60= 1.5×0.04=
1.53-0.7= 1.5-0.6= 0.3÷1.5= 95÷19=
0.65+4.35= 14-7.4= 11.2-9.8=
4
5
-
7
10
=
5
6
-
2
5
=
4
5
+
1
2
=
3
5
-
1
2
=
3
8
+3=
1
2
+
2
5
=
1
2
+
1
2
=
4
5
-
2
7
=
2
3
+
2
3
=
1-
1
2
=
1
4
+
1
3
=
2
3
+
3
4
=
1
4
-0=
1
2
-
1
7
=		 1-
2
3
=		 0+
5
6
=
7
8
-
3
4
=
2
3
+
2
3
=
5
8
-
4
8
=
1
5
+
4
5
=
2
13
+
1
6
+
5
6
=
1
2
+
3
4
-
3
4
=
1
7
+（
6
7
-
5
8
）=		 0.9×1.25×8= 5.85+1.37+4.25=
0.43×10+57= 62-2.8-1.2= 2.7×3÷2.7×3= 0.8×0.5×1.25=
脱式计算，能简算的要简算．
①0.4×1.25×24×8×2.5 ②1450-540÷18×15
③1.3×12.5+67×1.25 ④
7
9
÷
11
5
+
2
9
×
5
11
．
直接写出得数．
1248-289=		 1
3
4
+2
1
2
=		 7.7×
5
7
=		 1÷3
4
5
=		 1÷7+
6
7
=
10-6
8
9
=		 3.14×102= 11.7+3= 2.75-
1
2
=		 0.15÷0.3=
4÷25%= 35÷10%= 2002÷22=
8
11
÷
4
11
=
2
3
+
3
2
=
0.8-0.06= 100÷99= 4×25%=
3
8
：3=		 0.125×5×8=

15－3=12

25－3=22

35－3=32

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