1. Topic 11
Week 26 Feb. 22 , 2019

2. Topic 11
MAFS.1.NBT.3.6 (DOK 2) Subtract multiples of 10 in the range from multiples of 10 in the range (positive or zero differences), using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. [Conceptual Understanding] · Identify the value of each digit of a number within 100. · Use concrete models or drawings to subtract multiples of 10 in the range of from multiples of 10 in the range of (positive or zero differences). · Choose an appropriate strategy (based on place value, properties of operations, and/or the relationships between addition and subtraction) for solving subtraction problems with multiples of 10. · Relate the chosen strategy to a written method (equation) and explain the reasoning used

3. I DO!
Derek has 80 video games. He gives 30 away. How many video games does Derek have left?
____ - ____ = _____

4. We Do!
D’antaye has 60 marbles. His sister takes 20. How many marbles does he have now? Draw a picture to show your work.
How do you know your answer is correct?

5. They Do!
Kelsey has 80 stickers. She gives 40 stickers to Laneria. How many stickers does Kelsey have left?

6. You Do!
There are 60 butterflies in my yard. 50 fly away. How many butterflies are left? Explain how you got your answer.

7. You Do!
Shaliana has 90 dolls. She gives 30 to her best friend. How many dolls does Shaliana have left? Explain how you solved the problem.
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