简单公式
Simple formulae
理解并运用标准数学公式;能够重新排列公式以更换目标变量,通过逆运算来求出另一个未知量。
Understand and use standard mathematical formulae; rearrange formulae to change the subject, performing inverse operations to isolate a different variable
学习证据 / Evidence
- 识别给定公式中的目标变量
- 运用逆运算重新排列公式,使另一个变量成为目标变量
- 重新排列涉及多步运算(包括分数和幂)的公式
- Identify the subject of a given formula
- Use inverse operations to rearrange a formula to make a different variable the subject
- Rearrange formulae involving multiple steps including fractions and powers
评估问题 / Assessment
如果公式表示速度 = 距离 ÷ 时间,{{name}} 能否重新排列公式,在距离或时间为未知数时求出它们?
If a formula gives speed as distance ÷ time, can {{name}} rearrange it to find distance or time when they're the unknowns instead?