4.NBT.B.4 Grade 4 · Number and Operations in Base TenFluently add and subtract multi-digit whole numbers using the standard algorithm.Common Core State Standards for Mathematics, as adopted in the Massachusetts Curriculum Framework for Mathematics (2017), Grade 4.
Play the game: Place by PlaceStep 54 of the ColorMyMath curriculum · free, no sign-up →Past nine, color tells you which place a digit lives in. A ten is a triangle of ten dots; the number of triangles is the tens digit, so 34 is three triangles and four loose green dots.
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 54Three-digit addition with hard facts — carryingStep 56Three-digit subtraction with hard facts — borrowingStep 68Three-digit addition with level one factsStep 69Three-digit subtraction with level one factsStep 70Two-digit addition with level two factsStep 71Two-digit subtraction with level two facts4.NBT.A.1A digit is worth ten times as much one place to the left4.NBT.A.2Read and write big numbers in numerals, words and expanded form; compare with < = >4.NBT.A.3Round whole numbers to any place4.NBT.B.5Multiply up to four digits by one digit and two digits by two digits, explained with arrays and area4.NBT.B.6Divide up to four digits by one digit, with remaindersColorMyMath · 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.