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UNIT 7
CHAPTER 28
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CHAPTER 28 EXPLORING 2-DIGIT ADDITION AND SUBTRACTION
Chapter 28 Spiral Review and Test Prep
Chapters 128
Choose the best answer.
1.
Spencer had 19 marbles. He lost 3. How many does Spencer have now?
39
22
16
2.
Maya has 1 dime. She wants to buy gum for 20 cents. How much more money does Maya need?
5 cents
10 cents
20 cents
Add.
3.
Write the missing number.
4.
Use pictures or words to explain your answer.
5.
How can knowing
help you know
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