Subtracting Four-Digit Numbers
Learning Objective
I can subtract four-digit numbers with regrouping across zeros.
Key Concepts
When subtracting from 1000, and you need to regroup, you can subtract 1 from both numbers to make it easier.
When using the quick subtraction method, you don't need to do any regrouping.
This subtraction trick works with numbers other than 1000, such as 100, 4000, and 6500.
Practice Questions
This lesson includes 3 practice questions to reinforce learning.
View questions preview
1. Solve 2,000 - 645 using the quick subtraction method shown in the video. What is the result?
2. Using the method taught in the video, which subtraction problem is equivalent to 3,000 - 1,257?
3. Explain in your own words why subtracting 1 from both numbers in a subtraction problem gives the same answer as the original problem.
Educational Video
Subtract From 1000 | Subtract 4-digit numbers | Subtraction for Kids
Learning with Miss Kazi