| 例句 |
She's ready to learn simple addition and subtraction.她已经可以开始学习简单的加减法。She can do addition, but she hasn't learned subtraction yet.她会做加法，但还没有学减法。The test involves simple calculations, such as addition and subtraction.测验包括一些简单的运算，例如加法和减法。The children learned addition and subtraction.孩子们学了加法和减法。My father taught me to do addition and subtraction.我爸爸教我做加减法。Lesley is teaching the children addition and subtraction.莱斯利正在教孩子们加减法。I looked at what he'd given me and did a quick subtraction.我看着他给我的东西，快速做了个减法。Addition and subtraction are inverse operations.加法和减法是逆运算。There will be simple tests in addition, subtraction, multiplication, and division.要简单测试加法、减法、乘法和除法。There will be simple tests in addition, subtraction, multiplication and division.会有对加、减、乘、除运算的简单测试。The children are learning addition and subtraction.孩子们正在学习加减法。 |