Representing and Solving Problems Involving Addition and Subtraction Within 20

Its almost Halloween. Miss Madison is decorating the classroom. She hangs 5 things on the door. There are 12 more things hanging on the white board. How many decorations are there in all?

There are 17 students in class. 12 of them earn candy. How many are left without candy?

The 2nd grade class finds 8 spiders at recess. Mr. Stevenson squishes 2. How many are still alive?

Kenzie has 7 tallies. Lakota has 8 tallies. How many tallies do they have in all?

The classroom has 17 decorations hanging in the room. 4 fall down. How many are still hanging up at the end of the day?

Miss Madison has 2 brothers and 4 sisters. How many siblings does she have?

Leah brought treats for her birthday. She already had 7 treats. There are 17 people in our class. How many more did she need?

Miss Madison made 19 cupcakes. Her dog, Finn, ate 13 of them. How many cupcakes are left?

Riley grows up and gets 5 cats. She has room in her house for 7 more. How many cats can she get in all?

There are 5 black cats in the backyard. There are 3 brown cats in the backyard as well. How many total cats are in the backyard?