题目内容
看谁算得快. ×= | ÷= | ×8= | += |
18×2%= | 1-= | 3.5÷18= | 137-63-37= |
205-199+95= | 8.8+1.2= | 8π≈ | 0.33= |
解:=0.25; =2; ×8=6; =;
18×2%=0.36 1-=0.5; 3.5÷18=; 137-63-37=37;
205-199+95=101; 8.8+1.2=10; 8π≈24; 0.33=0.027.
故答案依次为:0.25,2,6,,0.36,0.5,,37,101,10,24,0.027.
分析:(1)(2)(3)(4)(5)(6)依据分数四则运算计算方法解答,
(7)(8)(9)(10),依据整数和小数四则运算计算方法解答,
(11)把π看作3解答,
(12)依据求一个数的立方计算方法解答.
点评:本题主要考查学生运用四则运算计算方法的能力.
18×2%=0.36 1-=0.5; 3.5÷18=; 137-63-37=37;
205-199+95=101; 8.8+1.2=10; 8π≈24; 0.33=0.027.
故答案依次为:0.25,2,6,,0.36,0.5,,37,101,10,24,0.027.
分析:(1)(2)(3)(4)(5)(6)依据分数四则运算计算方法解答,
(7)(8)(9)(10),依据整数和小数四则运算计算方法解答,
(11)把π看作3解答,
(12)依据求一个数的立方计算方法解答.
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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