SMP.7 All grades · Standards for Mathematical PracticePractice 7: look for and use structureMassachusetts Curriculum Framework for Mathematics (2017), All grades.
Play the game: Squares to 110Steps 66, 67 of the ColorMyMath curriculum · free, no sign-up →Every game asks for the picture first and the speed last, and every direction both ways in the same round.
Every page is free and open — nothing to install, no account, and it works on a phone or a classroom board. Every number has its own color: 1 red, 2 orange, 3 yellow, 4 green, 5 blue, 6 purple, 7 brown, 8 pink, 9 cyan, and a number is that many colored dots.
Step 66Algorithms for the squares of 10, 15, 20 … 55Step 67Algorithms for the squares of 60, 65 … 110ColorMyMath · getridoftheteacher.com · every number has its own color, and a number is that many colored dots. Matching a game to a standard is a judgement call; the official text is at doe.mass.edu.