10 and 100 Find out how to multiply and divide using place value tables. How to multiply in your head Explore how to use mental methods for multiplication. Multiply a 2-digit by a 1-digit number ...

You can use place value headings, like ones, tens and hundreds, to help you understand the value of each digit. When only one digit is used, such as 4, it represents 4 ones. When two digits are ...