称体重。
(1)笑笑这次称体重是多少千克? 29 . 5
29.5+3.62= 33.12(千克)
+ 131. 6 2
答:笑笑这次称体重是33.12千克。 33 . 1 2
(2)淘气上次称体重是多少千克? .
38-2.65= 35.35(千克)
38 . 0 0
- 2.65
答:淘气上次称体重是35.35千克。 35 . 3 5
第8课时 比身高(2 )
1. 掌握小数进位加法和退位减法的计算方法。 (重点)
2. 能运用小数的进位加法和退位减法去解决 实际问题。(难点)
列竖式计算。
3.5+2.26= 5.76 3.5
+2.26 5. 76
7.1-1.3= 5.8 . 7. 1
-1 . 3
5. 8
知识点 小数进位加法和退位减法的应用
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