In this lesson, we will learn how to write a family of addition facts linking three numbers up to 10 and model them with part–whole models.

Q1:

There are 11 black cats and 6 white cats for sale.

The total number of cats is 11+6=17.

Which of the following is also an addition sentence for the number of cats?

Q2:

Ethan had 3 candies, and Madison gave him 4 candies.

Write an addition equation for the number of candies Ethan has.

Which of the following is also an addition equation for the number of candies Ethan has?

Q3:

Look at what Sophia did.

Pick the addition sentences that match what she says.

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