多步乘除
Multi-Step Multiply & Divide
解决涉及乘法和除法的问题,包括倍数问题,以及n个物体与m个物体之间的对应问题。
Solve problems involving multiplication and division, including scaling problems and correspondence problems where n objects are connected to m objects
学习证据 / Evidence
- 解决倍数问题(例如“彩带是原来的3倍长”)
- 解决对应问题(例如“4件衬衫和3条裤子——能搭配出多少套衣服?”)
- 解决缺一个数字的乘法或除法问题
- Solve a scaling problem (e.g. 'the ribbon is 3 times as long')
- Solve a correspondence problem (e.g. '4 shirts and 3 trousers — how many outfits?')
- Solve a missing-number multiplication or division problem
评估问题 / Assessment
如果一份4人份的食谱需要3个鸡蛋,{{name}}能算出8人份需要多少个鸡蛋,并认识到这是一个加倍或倍数问题吗?
If a recipe for 4 people needs 3 eggs, can {{name}} work out how many eggs are needed for 8 people — recognising it as a doubling or scaling problem?