4.OA.B.4 Grade 4 · Operations and Algebraic ThinkingFind all factor pairs for a whole number in the range 1–100.Common Core State Standards for Mathematics, as adopted in the Massachusetts Curriculum Framework for Mathematics (2017), Grade 4.
Play the game: Build the SquareStep 63 of the ColorMyMath curriculum · free, no sign-up →Addition is a length — dots laid end to end on the number line. Taking away comes down the same line. Every fact is shown as a picture before it is ever asked for from memory.
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 63Squares 1 through 154.OA.A.1Read a multiplication as a comparison: 35 = 5 x 7 is 5 times as many as 74.OA.A.2'Times as many' word problems, multiplying or dividing4.OA.A.3Multi-step word problems where the remainder has to be read the right way4.OA.C.5Make a number pattern that follows a ruleColorMyMath · 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.