Grade 4, Chapter 1, Chapter 8, Chapter 9
Grade 5, Chapter 1, Chapter 5, Chapter 6
Place Value, Decimals, Operations (involving whole numbers and decimals)
These easy-to-manipulate disks provide hands-on practice for developing number sense. Color-coded according to place value, the foam disks allow students to visually track what happens when they regroup numbers in both addition and subtraction. And, they help illustrate that multiplication is the same as repeated addition and division is the same as repeated subtraction.
Set includes 25 of each value, thousandths to millions.
Disks are 1″ in diameter, 1/8″ thick.