subtraction造句
The plus sign is used in addition and the minus is used in
subtraction.
加号用于加法;减号用于减法.
...using concrete objects to teach addition and
subtraction.
用实物来教加减法
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。
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。
The difference is found by
subtraction.
用减法得出差额.
...simple addition and
subtraction problems.
简单的加减题