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