addition and subtraction

addition and subtraction 基本解释

加减法

addition and subtraction 用法和例句

1、division, addition and subtraction in their head.

作加减乘除。

2、Children learning addition and subtraction.

学习加减发的儿童。

3、My father taught me to do addition and subtraction.

我爸爸教我加减法。

4、We do addition and subtraction in arithmetic.

在算术里，我们作加减运算。

5、Pupils are taught addition and subtraction first.

小学生首先学加法和减法。

6、Understand that addition and subtraction are inverse.

理解加法和减法是互为逆运算

7、Master the method of doing addition and subtraction.

掌握整十数加减法的计算方法。

8、He said you needed addition and subtraction.

他认为只需要加法和减法运算就可以了。

9、Addition and subtraction of decimals error rate is higher.

小数加、减法对位的错误率较高。

10、Review on the Research for Addition and Subtraction Word Problem Solving

加减文字题解决研究概述

重点词汇

addition n. 加法, 增加的人(或物) [计] 加法

subtraction n. 减少 [计] 减法