较难的数量分数
Fractions of amounts (harder)
解决涉及越来越难的分数计算数量的问题，包括结果为正整数的非单位分数。
Solve problems involving increasingly harder fractions to calculate quantities, including non-unit fractions where the answer is a whole number
学习证据 / Evidence
- 求20的3/5是多少
- 计算18的2/3，并说明两步过程（先除后乘）
- 解决：一袋糖有24颗，其中3/8是红色的，红色糖有多少颗？
- Find 3/5 of 20
- Calculate 2/3 of 18 and explain the two-step process (divide then multiply)
- Solve: A bag has 24 sweets, 3/8 are red — how many red sweets?
评估问题 / Assessment
如果一个班有28名学生，其中3/4交来了作业，{{name}}能准确算出交作业的人数吗？
If 3/4 of a class of 28 pupils brought their homework in, can {{name}} work out exactly how many pupils that is?