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用计算器计算

用计算器计算. 第 1 课时. 课件设计：肖凡 重庆市渝北区寨坪完全小学校. 显示屏. 开机键. 关机键. 清除数据键. 四则运算键. 数字键. 用计算器输入数。. 1. 184560. 依次按数字键 1,8,4,5,6,0 。. 3906728. 依次按数字键 3,9,0,6,7,2,8 。. 9798325. 依次按数字键 9,7,9,8,3,2,5 。. 48675010. 依次按数字键 4,8,6,7,5,0,1,0 。. 说一说. 如果把 18163 输成了 18153 ，怎么办呢？.

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用计算器计算

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  1. 用计算器计算 第1课时 课件设计：肖凡 重庆市渝北区寨坪完全小学校

  2. 显示屏 开机键 关机键 清除数据键 四则运算键 数字键

  3. 用计算器输入数。 1 184560 依次按数字键1,8,4,5,6,0。 3906728 依次按数字键3,9,0,6,7,2,8。 9798325 依次按数字键9,7,9,8,3,2,5。 48675010 依次按数字键4,8,6,7,5,0,1,0。

  4. 说一说 如果把18163输成了18153，怎么办呢？ 1. 按 C·CE，清除18153，再输入18163。 2. 先按运算键“-”，再数字键“1”和“0”，最后按“=”键。

  5. 购物。 2 第三步 第四步 第一步 第二步 3670+2488= （元） 6158 答：一共要6158元。

  6. 用计算器计算。 4980-2689= 19126+7306= 64897-5329= 5632+7895= 10260-3809= 61200+36000= 49870-20310= 56785+32589= 26432 2291 59568 13527 97200 6451 29560 89374

  7. 通过这节课的学习，你有什么收获？ 总结

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