5.NBT.A.4 Grade 5 · Number and Operations in Base TenUse place value understanding to round decimals to any place.Common Core State Standards for Mathematics, as adopted in the Massachusetts Curriculum Framework for Mathematics (2017), Grade 5.
Play the game: Ten Times Biggerfree, 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.
5.NBT.A.1Ten times as much to the left, a tenth as much to the right, decimals too5.NBT.A.2Multiply and divide by powers of 10: the zeros pattern and the moving decimal point; 10ⁿ5.NBT.A.3Read, write and compare decimals to thousandths5.NBT.B.5Multiply multi-digit whole numbers fluently with the standard algorithm5.NBT.B.6Divide up to four digits by two digits with the area model5.NBT.B.7Add, subtract, multiply and divide decimals to hundredthsColorMyMath · 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.