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小数的加法和减法

小数的加法和减法. 灵宝市第一小学 赵竹萍. 李伯伯家应付水费和天然气费共多少元 ?. 1 、大田村和黄桷村共出售小麦多少吨? 2 、大田村比黄桷村多出售小麦多少吨? 3 、黄桷村比大田村少出售小麦多少吨?. 注意哟!. 1 、相同数位要对齐,从低位算起。 2 、进行加法计算时,要注意“满十进一”,进行减法计算时,要注意某数位上不够减,要向前一位“借 1 作 10” 再减。 3 、注意在得数里对齐横线上的小数点,点上小数点。. 还要注意结果要化简。. 算一算.

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小数的加法和减法

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  1. 小数的加法和减法 灵宝市第一小学 赵竹萍

  2. 李伯伯家应付水费和天然气费共多少元?

  3. 1、大田村和黄桷村共出售小麦多少吨? 2、大田村比黄桷村多出售小麦多少吨? 3、黄桷村比大田村少出售小麦多少吨?

  4. 注意哟! 1、相同数位要对齐,从低位算起。 2、进行加法计算时,要注意“满十进一”,进行减法计算时,要注意某数位上不够减,要向前一位“借1作10”再减。 3、注意在得数里对齐横线上的小数点,点上小数点。 还要注意结果要化简。

  5. 算一算 6. 27+28.93 31-4.92 12.4 + 5.6 9.8 - 6

  6. 小法官 4.5 改 -2.83 正———— 1.67 12.5 改 + 0.9 正 —————— 13.4 1 2. 5 4.5 +0.9 ﹣2.83 ———— ———— 2.15 1.73 ( ) ( ) 3.75 + 2.25 ———— 6.00 ( ) × × √

  7. 一双运动鞋38.5元,一根跳绳4.8元。 爸爸付出50元,找回……

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