Lesson: Column Subtraction of One-Digit Numbers from Two-Digit Numbers Mathematics • 2nd Grade
In this lesson, we will learn how to subtract a one-digit number from a two-digit number and record the calculation, and any regrouping, in columns using the standard algorithm.
Sample Question Videos
Find the answer.
Look at how Noah solved a subtraction question.
Which question was he working on?
Pick one way to write down the calculation he did.
What is the answer?
We can think about place value to help us subtract.
Pick the correct way to decompose 53 into tens and ones.
Subtract 7 from 53 by following these steps:
- Regroup 1 ten into 10 ones.
- Take away 7 ones.