七年级数学上册第二章有理数2.15用计算器进行计算作业(新版)华东师大版.doc

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1、12.15 用计算器进行计算1判断题(1)计算 3(4)的按键顺序为 (2)按 的结果是 6(3)2 3的按键顺序为 2填空题(1)用计算器求 4560825,按键顺序且显示的结果是:_;(2)用计算器求(2184)14,按键顺序且显示的结果是:_ _;(3)用计算器计算(3) 3,按键顺序且显示的结果为:_;(4)用计算器计算2 5,按键顺序为: 最后按 ,得结果为_;(5)用计算器计算(5) 42(3) 2,按键顺序且显示的结果为 _ _ _ _ _ _3用计算器计算下列各式的值:(1)205312; (2)138257; (3)532251;(4)59974821; (5)681423;

2、 (6)00203054用计算器计算:(1)34(2)127; (2)18174(25); (3)91 2;(4)(052) 2; (5)8673 2; (6)(094) 2;(7)(21) 4; (8)5 55用计算器计算:(1)4 2(16)084(2)(012) 2;(2)4(3) 25(3)62参考答案:1(1) (2) (3)3(1)517 (2)119 (3)281 (4)9509 (5)288063 (6)000614(1)101 (2)406 (3)8281 (4)02704 (5)75220929 (6)08836 (7)194481 (8)31255(1)116944 (2)57

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