In this lesson, we will learn how to add two consecutive numbers with sums up to 20 by finding one more than a doubles fact.
Q1:
Use
to find
Q2:
Notice that 4 is one more than 3.
So the answer to 3+4 is one more than the answer to 3+3.
If 3+3=6, which of the following is equal to 3+4?
Q3:
Olivia was asked to solve 8+9.
She wrote
Is her solution correct?
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