### Common Core State Standard

### 3.NBT.A.1

Use place value understanding to round whole numbers to the nearest 10 or 100.

*CCSS: 3.NBT.A.1*

The roundlings are stinking up the joint. Don't let them stink up MathPup! Use your FlowerPuff Cannon to shoot the right number at them to keep them away and smelling better.

*CCSS: 3.NBT.A.1, 3.OA.C.7*

Mathboat is back with multiplication or division steering! Steer the boat with multiplication or division (your choice) to the numbers that round to the target number.

*CCSS: 3.NBT.A.1*

Incoming meteors! Protect your cities!. Only certain meteors are heading for the city. Use your rounding skills to blow up the meteors that will damage your cities.

*CCSS: 3.NBT.A.1*

The rounding version of the popular Numbers & Cannons game. Round the number on the barrel to the nearest 10 and load up the cannon. Stuck? Click on the Walkthrough button to see the video walktrhough.