单击此处编辑母版标题样式单击此处编辑母版副标题样式*1计算器的使用对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have计算器的特点：运算快，操作简便，体积小计算器的种类：（1）简单计算器（2）科学计算器（3）图形计算器对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have科学计算器的使用功能键：（1）开ON （2）关OFF（3）清除DEL（4）第二功能键：先按组合键shift对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have范例练习对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have做一做（P82）观察：512345679412345679猜一猜： 812345679验证：3 12345679为什么？观察、你发现了什么？对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have计算：111 111 111111 111 111分析与解：用计算器恐怕都麻烦，怎么办呢 ？ （1）观察：1 1 11 11（2）猜想：111 111（3）验证：1111 1111（4）递推、总结规律：结果为 12345678987654321方法指导：以退为进，由特殊到一般思路方法对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have计算：3333 333 334 3333 333 333的 乘积中有多少数字是偶数？分析与解：用计算器恐怕都麻烦，怎么办呢 ？ （1）观察：4 3 34 33（2）猜想：334 333（3）验证：3334 3333（4）递推、总结规律：结果为 10个偶数 方法：把一般的问题缩小为特殊问题， 以小见大，以少见多，以简取繁对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have分析与解：用计算器恐怕都麻烦，怎么办呢？从特殊情况入手，（1）观察：9919100 （末尾有2个零）999919910000 （末尾有4个零）（2）猜想并验证：999 9991999（4）递推、总结规律：结果为 个 对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have分析与解：用计算器恐怕都麻烦，怎么办 呢？从特殊情况入手，（1）观察：9981 各位数字之和：81999999801 各位数字之和：189 2（2）猜想并验证：999 999998001各位数字之和：279 3（4）递推、总结规律：结果为9 1994 对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have（1）观察：（2）猜想，验证：（3）递推、总结规律分析与解：用计算器恐怕都麻烦，怎么办呢 ？从特殊情况入手，对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have二.做一做 （一）.步骤： 1.任选1，2，3，4，5，6，7，8，9中 的一 个数 2.将这个数字乘以9 3.将上面的结果乘以12 345 679多选几个数试一试，你发现了什么规 律？与同伴交流你的理由 。 对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have 12 345 679*9=111 111 111对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have （二）用计算器计算下列各式，将结果填在横 线上 99 999 11= _ 99 999 12=_99 999 13=_