Adding Multi-Digit Numbers
Follow the steps to add multi-digit numbers using different strategies, and understand each intermediate step.
課題1
Putting It All Together
Answer these open ended questions on your own or with others to form deeper math connections.
課題2
For big numbers, do you think that one of the methods is better than the other? Why?
課題3
Some people can add large numbers together in their heads. What mental tricks could they be using?