Subtracting Two-Digit Numbers
2nd GradeMath30 min
Learning Objective
I can subtract two-digit numbers without regrouping.
Lesson Flow
Watch Video
Subtract two-digit numbers on a hundreds chart.
Mr. Tom Teaches Again!
Guided Notes
Key concepts students will learn:
- •
When subtracting using a hundreds chart, find the first number and count either to the left or up.
- •
To subtract 10 on a hundreds chart, move up one block, and to subtract 20, move up two blocks.
- •
To solve 74 - 48, Kelvin subtracted 40 by moving up four blocks from 74, then counted back 8 more spaces.
Practice
3 questions • Multiple choice & Short answer
Exit Ticket
“Solve 63 - 21 using the hundreds chart strategy that Kelvin used in the video. How many blocks do you move up on the hundreds chart?”
Teacher Guide
Get the complete package:
- Answer keys for all questions
- Differentiation strategies
- Extension activities
- Printable student handouts
