发布人:繁体字网(www.fantiz5.com) 发布时间:2015-08-29 07:30:00
试题原文 |
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(1)2.5+7.5÷5, =2.5+1.5, =4; (2)12.6+4.5÷3-12.7, =12.6+1.5-12.7, =14.1-12.7, =1.4; (3)9999×2222+3333×3334, =(3333×3)×2222+3333×3334, =3333×(3×2222)+3333×3334, =3333×(6666+3334), =3333×10000, =33330000; (4)2.9×6.7+2.9+2.9×2.3, =2.9×(6.7+1+2.3), =2.9×10, =29; (5)4.8-(1.6÷4+1.2), =4.8-(0.4+1.2), =4.8-1.6, =3.2; (6)35.2÷[(20.5-9.5)×0.4]-0.6. =35.2÷[11×0.4]-0.6, =35.2÷4.4-0.6, =8-0.6, =7.4. |
经过对同学们试题原文答题和答案批改分析后,可以看出该题目“计算(1)2.5+7.5÷5(2)12.6+4.5÷3-12.7(3)9999×2222+3333×333..”的主要目的是检查您对于考点“小学小数的四则混合运算及应用”相关知识的理解。有关该知识点的概要说明可查看:“小学小数的四则混合运算及应用”。