题目内容
(2009?沙县)
口算: 298+76= |
6.4-4= | 0.25×12 | 4.8÷0.01 | ||||||||||||
90%×30% | 1÷
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0.3×2÷0.3×2. |
分析:(1)(2)(3)(4)(10)依据整数和小数四则运算计算方法解答,
(5)(6)(7)(8)(9)依据分数四则运算计算方法解答.
(5)(6)(7)(8)(9)依据分数四则运算计算方法解答.
解答:解:298+76=374; 6.4-4=2.4; 0.25×12=3; 4.8÷0.01=480;
90%×30%=0.27; 1÷
×
=1;
+
=
;
÷
=
;
×
=
; 0.3×2÷0.3×2=4.
90%×30%=0.27; 1÷
1 |
8 |
1 |
8 |
5 |
8 |
1 |
4 |
7 |
8 |
1 |
3 |
5 |
6 |
2 |
5 |
3 |
8 |
4 |
9 |
1 |
6 |
点评:本题主要考查学生运用四则运算计算方法的能力.
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