Adding and Subtracting Big Numbers
3rd Grade•35 minutes
Learning Objective
I can add and subtract four-digit numbers.
Key Concepts
When subtracting across zeros, if you go across a zero, it becomes a 9.
When subtracting across zeros, if you stop at a zero, it becomes a 10.
When regrouping, always borrow before you spend it.
Practice Questions
This lesson includes 4 practice questions to reinforce learning.
View questions preview
1. Solve the following subtraction problem: 604 - 238. Remember to borrow correctly when needed.
2. When you are subtracting and need to borrow from a zero, what number does the zero become after borrowing from the next place value?
3. Solve: 5000 - 1234
...and 1 more questions
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