Four-digit numbers can be partitioned into ones, tens, hundreds and thousands. Understanding the value of each digit makes it easier to compare numbers using the less than (<), greater than (>) and ...

Napier’s method of multiplication is a method used to multiply large numbers when you do not have a calculator. Draw a 2 by 2 grid to multiply a 2-digit number by another 2-digit number. Label the ...

From fractions and decimals to distance and time, the humble-but-versatile number line can deepen students’ understanding of ...

A round robin bet is a way to place multiple parlays at once from a single set of picks. Instead of combining all your ...