Algorithms
Practice written addition and subtraction using the standard algorithm with trading, carrying and borrowing with MAB diagrams..
Square Numbers
🔢 Number Extender – Place Value
Explore how a number like 9876 can be expressed as 9 thousands + 8 hundreds + 7 tens + 6 ones, or as 98 hundreds + 7 tens + 6 ones. Use the Fold and Unfold buttons to discover all the ways to describe any number.
Place Value Jumper
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