Lesson 12 Compare Addition and Subtraction Story Problems

    • Let’s figure out what’s the same and what’s different about these story problems.

Warm-up Choral Count: Count to 40

Let’s count to 40.

Activity 1 Ducks in the Pond

large tree

There were 5 ducks in the pond.
4 more ducks came to the pond to swim.
How many ducks are in the pond now?

Activity 2 Ducks Swim Ashore

There were 9 ducks swimming in the pond.
Then 4 of the ducks waddled onto the grass.
How many ducks are swimming in the pond now?

Activity 3 Centers: Choice Time

Choose a center.


Center. Bingo.

Math Fingers

Center. Math Fingers.

Subtraction Towers

Center activity, Subtraction Towers.


Center. 5 frame.

Math Stories

Center. Math Stories.

Counting Collections

Center. Counting Collections.

Practice Problem

Problem 1

There are 7 crows in the tree.
Then 3 more crows fly into the tree.
How many crows are in the tree altogether?
Show your thinking using drawings, numbers, words, or objects.