It is called column subtraction, because you write one number underneath the other, using place value to sort the tens and ones in separate columns. You then subtract the digits, starting from the ...

These include using visual aids, such as an array or place counters, or by using written methods. Complete this interactive activity to better understand how to multiply a 2-digit number by a 1 ...

As a team, use your knowledge of tens and ones place values to help the goats ... Increasing and decreasing the value of 2-digit numbers. Identifying the value of a digit based on its position ...