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UNIT 7
CHAPTER 27
Lesson 27-1
 
 
 
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CHAPTER 27 ADDITION AND SUBTRACTION TO 20
Lesson 27-1 HANDS ON/ALGEBRA: Patterns with 10
 
 

 Add. Use  and .




Using counters to add


12.
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27.

  
Number Sense
  
Circle the best answer.

28.Which is another way to show 18?


29.Katie puts 14 in two rows. She puts 10 in the first row. How many does she put in the second row?
3
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5

  
Your child learned how to add number patterns with 10.
Activity:  Put 10 pennies in a row. Ask your child to add 1, 2, and 3 pennies to 10 and find the sum each time.

 

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