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In this lesson, we will learn how to use addition facts with sums to 20 to solve related problems with sums to 100.
Students will be able to
Q1:
14+32=46. Find 14+33.
Q2:
If 35 is 10 less than 45 and 45+13=58, find 35+13.
Q3:
Use 7+2 to solve 17+2.
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