There are many games that you probably already have at home that encourage development in math: Yahtzee (basic addition), Connect Four (problem solving, developing strategies), Puzzles (spatial awareness), Card Games (have players flip cards and greatest or least number wins), Candy Land (make your own game cards and use math facts instead of colors), Monopoly (financial literacy), Battleship (coordinate graphs), etc.=
You can help your child practice percents by letting them calculate a tip at a restaurant.
You can develop a better understanding of fractions by discussing equal parts with your child. Any time you bake a frozen pizza, it is an opportunity to let them understand what 1/6 means.
Making flash cards of equivalent fractions, decimals, and percents can be an easy way to practice. You can make it a game by seeing how many they can answer in a minute. If they improve their score over time, reward them.
You can motivate your child to practice on Think Through Math to reinforce concepts taught at school. TTM is a great way to give every student the opportunity to catch up, keep up, and move up. To implement Think Through Math at home all you need is a device and internet connection. As a web-based learning system, students can use this differentiated instruction with instructional support at every step anytime and anywhere. https://www.thinkthroughmath.com/
Free online math games are another way for your child to practice math skills. Some examples are www.hoodamath.com (Grades 1 through 12) and www.mathplayground.com (Grades 1 through 6). These website offer different games and activities by grade level and concept.