### 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, 4.NBT.A.3*

Take an alien flying saucer for a spin and collect numbered fuel pods that answer the rounding (nearest 10) problems. Collecting fuel pods keep your saucer flying. Try flying as long as you can.

*CCSS: 3.NBT.A.1, 4.NBT.A.3*

Take an alien flying saucer for a spin and collect numbered fuel pods that answer the rounding (nearest 100) problems. Collecting fuel pods keep your saucer flying. Try flying as long as you can.

*CCSS: 3.NBT.A.1*

Race your motorcycle to the finish line. Race against some tough competitors and try and beat them all by rounding numbers.

*CCSS: 3.NBT.A.1, 4.NBT.A.3*

Fill up balloons on each crate to send them on their way. Choose the right canister to fill up the balloons on each crate. A simple quick play game with 4 difficulty settings to choose from.

*CCSS: 3.NBT.A.1*

Left Turn Otto is now rounding numbers but he'll need your help to find all of the correct numbers. Help Otto find all of the correct numbers in each level. Not hard to do on Easy setting but you'll need to remember Otto only turns left!

*CCSS: 3.NBT.A.1*

Practice rounding the fun way by matching a number with the number it rounds to in this rounding memory game.

*CCSS: 3.NBT.A.1*

The rounding version of Math Balloons. Remove balloons to make groups of same colored balloons by determining if a balloon's rounding statement is correct or incorrect. Make matches over all of the colored squares to complete a level.

*CCSS: 3.NBT.A.1*

Have you ever steered a boat with your rounding skills? Well now you can in Mathboat Rounding to Nearest 10. Steer the boat by rounding the numbers in the direction arrows to the nearest 10. Video Instructions