5.NBT.B.7 Grade 5 · Number and Operations in Base TenAdd, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction and between…Common Core State Standards for Mathematics, as adopted in the Massachusetts Curriculum Framework for Mathematics (2017), Grade 5.
Play the game: Share It OutStep 83 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 83Division by 2 with decimalStep 84Division by 5 with decimalStep 85General division with decimal — Romeo and Juliet5.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.A.4Round decimals to any place5.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 modelColorMyMath · 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.