四年级数学下册第一单元《四则运算》练习题(无答案)新人教版.doc

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1、1四则运算一、请你算一算。 (1)口算:235876 31169 3335 223654886 72182125525 0(1111 1111) 287201040 (2)运算顺序一样的画“” ,不一样的画“”: 3288 7557 81933288 7557 8193( ) ( ) ( )(3)我的计算又准又快: 17316205 1682242 290011924 10818226(234195) 1226 183(17422525 )2(465354)25 1013332223 二、火眼金睛辨是非:1、任意数与 0相乘都得 0。 ( )2、0 除任意一个非 0数都等于 0。 ( )3、0

2、12343210 是一道正确的算式。 ( )4、被减数等于减数,差是 0。 ( )5、混合运算都要按从左往右的顺序来计算。 ( )三、我会列综合算式:(不必计算)(1)9606415 521567(2)3601230 30+333 673334四、文字式题我会列:(列式再计算)1、97 与 55的和乘以它们的差,积是多少?2、8 的 125倍除以 200的一半,商是多少?五、解决问题: 1、某化肥厂一月份生产化肥 310吨,二月份生产 400吨,三月份生产 490吨化肥,平均每月生产化肥多少吨?32、果园用 3辆卡车运送了 480箱梨子到超市。照这样计算,再增加 1辆卡车,一共可以运多少箱梨子?3、某服装加工部用 120米布可做成人制服 24套, 如果做儿童服装 , 可做 30套, 每套儿童服装比成人服装少用布多少米? 4、赵伯伯家养了 36只鸡,养鹅的只数与鸡同样多,养鸭的只数是鹅的一半。赵伯伯家一共养鸡、鸭和鹅多少只?45、某旅行社推出“风景区一日游”的两种出游价格方案。现有成人 8人,儿童 4人,选择哪种方案合算?方案 1:成人每人 120元。儿童每人半价。方案 2:团体 12人以上(包括 12人) ,每人 85元。

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