题文
脱式计算.(能简算要简算的) ①2×3.6+3.6×7+3.6 | ②1.25×32×25 | ③5.42-(3.75-0.58) | ④34.7-+65.3- | ⑤××1×1 | ⑥23×+57÷. |
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题型:解答题 难度:中档
答案
①2×3.6+3.6×7+3.6, =3.6×(2+7+1), =3.6×10, =36;
②1.25×32×25, =(1.25×8)×(25×4), =10×100, =1000;
③5.42-(3.75-0.58), =(5.42+0.58)-3.75, =6-3.75, =2.25;
④34.7-+65.3-, =(34.7+65.3)-(+), =100-1, =99;
⑤××1×1, =(×)×(×), =1×1, =1;
⑥23×+57÷, =23×+57×, =(23+57)×, =80×, =30. |
据专家权威分析,试题“脱式计算.(能简算要简算的)①2×3.6+3.6×7+3.6②1.25×32×25③5...”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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