题目内容

直接写出得数.
236+298=
1
5
-
1
6
=
3
8
×12
=
0.15+20.2=
10÷
5
6
=
6.3÷0.07= 0.25÷2.5%= 6-0.75=
51×
2
3
=
3.7×0.001= 6
6
7
÷3
=
2
3
+1
1
4
=
分析:(1)依据整数加法性质化为236+300-2解答,
(2)(3)(5)(7)(9)(11)(12)依据分数四则运算计算方法解答,
(4)(6)(8)(10)依据小数四则运算计算方法解答.
解答:
解:236+298=534;
1
5
-
1
6
=
1
30
3
8
×12
=4.5;
0.15+20.2=20.35;
10÷
5
6
=12;
6.3÷0.07=90; 0.25÷2.5%=10; 6-0.75=5.25;
51×
2
3
=34;
3.7×0.001=0.0037; 6
6
7
÷3
=2
2
7
2
3
+1
1
4
=1
11
12
故答案为:534,
1
30
,4.5,20.35,12,90,10,5.25,34,0.0037,2
2
7
1
11
12
点评:本题主要考查学生运用四则运算方法解决问题的能力.
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