“加法”造句

2024年05月16日 20:02:40
7岁的孩子中1/4以上都不会正确地做加法运算。
More than a quarter of seven year-olds cannot add up properly.

那是简单的加法.
That is a simple addition.

加号用于加法;减号用于减法.
The plus sign is used in addition and the minus is used in subtraction.

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