题目内容

(2011?合川区模拟)
直接写出得数
37+45=
24÷100= 1.5×40= 0.2×0.8=
1-0.16= 2.3+3.5= 3.2÷32= 18×30=
6
7
-
2
7
=
1-
3
4
=
5
12
×
6
5
=
9
10
÷3=
分析:(1)(2)(3)(4)(5)(6)(7)(8)依据整数和小数四则运算计算方法解答,
(9)(10)依据分数减法计算方法解答,
(11)(12)依据分数乘除法计算方法解答.
解答:
解:37+45=82; 24÷100=0.24; 1.5×40=60; 0.2×0.8=0.16;
1-0.16=0.84; 2.3+3.5=5.8; 3.2÷32=0.1; 18×30=540;
6
7
-
2
7
=
4
7
1-
3
4
=0.25;
5
12
×
6
5
=0.5;
9
10
÷3=0.3.
故答案为:82,0.24,60,0.16,0.84,5.8,0.1,540,
4
7
;0.25;0.5;0.3.
点评:本题主要考查学生运用四则运算计算方法进行计算的能力.
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