I 'll deal with decimals in the next lesson .

下一堂课我要讲小数。

Please enter a valid amount value with at most 2 decimals .

请输入一个有效的价值数额至多两位数.

By the age of eleven , children should know what percentages are and what decimals are .

儿童到11岁的时候应该知道什么是百分比，什么是小数。

Decimals include infinite decimals and repeating decimals .

小数包括无限小数和循环小数。

As same as the essence of addition of whole numbers , the essence of addition of decimals is to combine two decimals into one .

小数加法的意义与整数加法的意义一样，也是把两个数合并成一个数的运算。