题目内容

(2012?陆良县模拟)
0.37+2.3= 0.125×16= 5÷7=
3
8
×3
=
1
3
+1
1
2
=
5
6
×
8
15
=
0.5÷
1
2
=
7
8
×1
1
7
=
1-0.94= 2-1
5
7
=
1
1
3
÷
2
3
=
40÷25%=
分析:本题较简单,根据小数的加、法、乘、除计算法则口算,对于分数能约分的要约分的再计算.
解答:解:
0.37+2.3=2.67 0.125×16=2 5÷7=
5
7
3
8
×3
=1
1
8
1
3
+1
1
2
=1
5
6
5
6
×
8
15
=
4
9
0.5÷
1
2
=1
7
8
×1
1
7
=1
1-0.94=0.06 2-1
5
7
=
2
7
1
1
3
÷
2
3
=2
40÷25%=160
故答案为:2.67,2,
5
7
1
1
8
1
5
6
4
9
,1,1,0.06,
2
7
,2,160.
点评:此题主要考查了小数的加、减、乘、除和分数的约分计算.
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