Subtraction with Base 10 Models Created by Jamie Unverzagt

Tens Ones Let’s start with 62 and then take away 8.

Tens Ones is 6 tens and 2 ones.

Tens Ones Can you take away 8 ones?

Tens Ones How can you get more ones?

Tens Ones How many tens and ones do you have now? 512

Tens Ones Now can you take away 8 ones? 512 How many ones are left? 4

Tens Ones How many tens are left? 45

Tens Ones is 4 tens and 1 one.

Tens Ones Can you take away 3 ones?

Tens Ones How can you get more ones?

Tens Ones How many tens do you have now? 3

Tens Ones How many ones do you have now? 311 Youhad 1got 10 more You had 1 one and you got 10 more.

Tens Ones Do you still have 41 total? Explain

Tens Ones YES! When you regroup, you still have the same amount. You just show it a different way!

Tens Ones Now can you take away 3 ones? 311 How many ones are left? 8

Tens Ones Can you take away 1 ten? 8

Tens Ones How many tens are left? 82

Tens Ones Now Try This: 91 Excellent Job!

Tens Ones Now Try This: 8 You’ve Got It! 1

Math Journal Topic: Explain how to solve 53 – 9 using pictures, numbers, and words. Will you have to regroup? Why or why not?