题文
用自己喜欢的方法计算 0.625×0.5++×62.5% 2.5×(+++) (111+999)÷[56×(-)] 49.5×10-(50-)×0.6. |
题型:解答题 难度:中档
答案
(1)0.625×0.5++×62.5%, =0.625×0.5+0.625+0.5×0.625, =(0.5+1+0.5)×0.625, =2×0.625, =1.25;
(2)2.5×(+++), =2.5×(4×), =2.5×4×, =10×, =9;
(3)(111+999)÷[56×(-)], =1110÷[56×-56×], =1110÷[24-21], =1110÷3, =370;
(4)49.5×10-(50-)×0.6, =49.5×(10+0.6)-49.5×0.6, =49.5×10+49.6×0.6-49.5×0.6, =495+(0.6-0.6)×49.5, =495+0×49.5, =495+0, =495. |
据专家权威分析,试题“用自己喜欢的方法计算0.625×0.5+58+12×62.5%2.5×(910+910+91..”主要考查你对 整数,小数,分数,百分数和比例的混合计算 等考点的理解。关于这些考点的“档案”如下:
整数,小数,分数,百分数和比例的混合计算
考点名称:整数,小数,分数,百分数和比例的混合计算
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