超过1/4的7岁儿童不会正确地做加法。
当加法的和是一个两位数或做乘法和减法时，查尔斯便无能为力。
Sums involving two-digit numbers or multiplication or subtraction were beyond him.
这是因为人在做加法时使用的神经单位和控制眼球向右转动的是同一个，而做减法的则刚好对应控制眼球向左转动的那一部分。
Because adding used the same brain circuits as when eyes moved right. And subtraction matched up with the neurons firing when eyes moved left.
比如你简单修改变量的类型和方法的名字，这样程序就可以做实数的加法了，如图2 - 3。
You could, for example, change this program so that it added two real Numbers simply by changing the types of the variables and the names of the input methods, as shown in Figure 2-3.
今天我应邀向各位交流一下我对“我”思维转为“我们”思维的看法。我的观点很简单，我认为个人做的是加法，而集体做的是乘法。
I've been asked to share my thoughts with you today about moving from "me" thinking to "we" thinking. My view is simple: individuals add; team player multiply.
曾有过胡萝卜丝加法式色拉油做的色拉。
我不能心算一长串数字的加法，那是计算器做的事情。
That's what jacks are for. I can't add long columns of figures in my head.
在他的生活中，除了做加法，他什么事也不做。
曾有过及胡萝卜丝加法式色拉油做的色拉。
曾有过及胡萝卜丝加法式色拉油做的色拉。
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