Adding and Subtracting Under 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?

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CCSS.2.OA.C.3

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

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CCSS.2.OA.A.1

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

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CCSS.1.OA.A.1

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

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CCSS.1.OA.A.1

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

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CCSS.2.OA.A.1

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

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CCSS.1.OA.A.1

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

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CCSS.2.OA.A.1

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

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CCSS.2.OA.A.1

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

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CCSS.1.OA.A.1

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?

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CCSS.1.OA.A.1