(Apps for all ages on the bottom of the page)

Hungry Guppy-basic facts
Number Bond Blasters - practice number bonds (+, -)
Ronys Math - basic math skills
Hungry Fish - addition and subtraction
Monkey Math School Sunshine - basic facts
Little Writers - trace numbers, letters and shapes
Playful Minds 5-8 - counting, patterns, matching, number order, graphing, more/less, and larger/smaller
Grow Your Garden - math facts in a fun format
Squeebles Fractions - simple fractions with cakes
Up to 100 - place value: tens and ones
Monster Squeeze - guess my number

Singapore Math Bar Models grades 2-5
Number Zoo-multiplication facts
Cracker and Goo - multiplication facts and logic
Number Bond Addition and subtraction to 99 by Crystal Springs Books
Number Bond Blasters - practice number bonds (+, -, x, /)
Playful Minds 5-8 - addition, subtraction, patterns, and telling time
Jungle Time - learn to tell time
Mystery Math Town - follow a ghost through town to save fireflies by doing math
Math Maniac - combine numbers to equal the given number
Cash Cow - fun with money
Squeebles Fractions - simple fractions with cakes
Fractions Smart Pirate - practice adding, comparing, and equivalence of fractions

Singapore Math Bar Models grades 2-5
Any Motion Math game
Motion Math: Zoom - using animals students practice place value from thousands to thousandths
Motion Math: Fractions - practice comparing, estimating, converting and plotting on a number line
Fractions Smart Pirate - practice adding, comparing, and equivalence of fractions
Math Maniac - combine numbers to equal the given number
King of Math - improve your math by racing around solving problems

All ages:

Singapore Math Bar Models grades 2-5
Splash Math - math for all ages
Math Blaster: Hyperblast 2HD - ride your Hypercycle through space while doing facts
Operation Math - speed drills in a fun setting (+, -, x, /)
Math Evolve - arcade style game to practice all facts
Mathmateer - build a rocket while practicing facts
AB Math - mental math for practicing facts
Math Bingo - practice facts in an engaging way
Marble Math - solve math as you roll a marble through mazes