Practice solving problems like 243 + 452. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

In this exercise, students practice addition within 100. Students receive immediate feedback and have the opportunity to watch a tutorial video get hints, and try questions repeatedly. CCSS.Math.Content.3.NBT.A.2 Fluently add and...

Practice solving problems like 34+5 and 34+50. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Practice solving problems like 34+1 and 34+10. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.