Module 2.5 Extending the Count-On Addition Strategy to Two-Digit Numbers.
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Module 2.5 Extending the Count-On Addition Strategy to Two-Digit Numbers
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What helped you figure out the sequence? How is counting by 20s the same as counting by twos? How is it different? Counting by 20s is the same as counting by twos except that tens are used instead of ones. Start at 10 and count by 20s. Extending the Count-On Addition Strategy to Two-Digit Numbers
Transcript of Module 2.5 Extending the Count-On Addition Strategy to Two-Digit Numbers.
Module 2.5
Extending the Count-On Addition Strategy to Two-Digit Numbers
Start at 24 and count by 2s.
Start at 48 and count by 2s
Start at 33 and count by 2s
Start at 51 and count by 2s
Start at 20 and count by 20s
Extending the Count-On Addition Strategy to Two-Digit Numbers
What helped you figure out the sequence?
How is counting by 20s the same as counting by twos?
How is it different?
Counting by 20s is the same as counting by twos except that tens are used instead of ones.
Start at 10 and count by 20s.
Extending the Count-On Addition Strategy to Two-Digit Numbers
What helped you figure out the sequence?
How is counting by 20s the same as counting by twos?
How is it different?
Counting by 20s is the same as counting by twos except that tens are used instead of ones.
Start at 10 and count by 20s.
Extending the Count-On Addition Strategy to Two-Digit Numbers
What is the total?
What can help you figure out the total?
Skip count
Add the tens places together
Extending the Count-On Addition Strategy to Two-Digit Numbers
What is the total?
What can help you figure out the total?
Skip count
Add the tens places together
Extending the Count-On Addition Strategy to Two-Digit Numbers
What is the total?
What can help you figure out the total?
Skip count
Add the tens places together
Extending the Count-On Addition Strategy to Two-Digit Numbers
What is the total?
What do you know about adding tens that could help you figure out the total?
Counting by 10s from 43
Add the tens places together first then add the ones
Use a hundreds chart
Extending the Count-On Addition Strategy to Two-Digit Numbers
What is the total?
What do you know about adding tens that could help you figure out the total?
Counting by 10s from 43
Add the tens places together first then add the ones
Use a hundreds chart
Extending the Count-On Addition Strategy to Two-Digit Numbers
What is the total?
What do you know about adding tens that could help you figure out the total?
Counting by 10s from 43
Add the tens places together first then add the ones
Use a hundreds chart
Extending the Count-On Addition Strategy to Two-Digit Numbers
What is the total?
What do you know about adding tens that could help you figure out the total?
Counting by 10s from 43
Add the tens places together first then add the ones
Use a hundreds chart
Extending the Count-On Addition Strategy to Two-Digit Numbers
How could you figure out the total?
Extending the Count-On Addition Strategy to Two-Digit Numbers
How could you figure out the total?
Extending the Count-On Addition Strategy to Two-Digit Numbers
How could you figure out the total?
Extending the Count-On Addition Strategy to Two-Digit Numbers
How could you figure out the total?
Extending the Count-On Addition Strategy to Two-Digit Numbers
How could you figure out the total?
Extending the Count-On Addition Strategy to Two-Digit Numbers
