7.EE.B.4 Grade 7 · Expressions and EquationsUse variables to represent quantities in a real-world or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities.Common Core State Standards for Mathematics, as adopted in the Massachusetts Curriculum Framework for Mathematics (2017), Grade 7.
Play the game: Balancefree, no sign-up →Letters stand for quantities you can still picture. A balance stays level, a function machine shows what it did, and doubling grows as a shape you can watch.
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.
7.EE.A.1Expand, factor, add and subtract expressions on an area model7.EE.A.2Rewriting shows meaning: p + 0.05p = 1.05p, 20% off is 0.8p7.EE.B.3Multi-step real-life problems with fractions, decimals, money and percents: estimate, then exactColorMyMath · 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.