XtraMath:

XtraMath is an online math fact fluency program that helps students develop quick recall and automaticity of their basic math facts. Students with a strong foundation of basic math facts will have an easier time when they begin to tackle more advanced math, like fractions or algebra. Link to Xtramath

Prodigy:

Prodigy engages students as they explore the math game world, where they answer math questions to complete epic quests and earn in-game rewards.  While completing math problems, the program targets domains and standards which align with their classroom.

Play.prodigygame.com 

Freckle: 

This program is designed by Renaissance to help students that are in K-9 to master math skills. This technology-based learning starts students with a diagnostic to determine where the student’s skill level is. Freckle then provides math assignments to each student’s level and helps them progress throughout each concept. Once the concept has been completed it will move the student’s up to the next level. 

Link to Freckle