Addition Facts and Methods
Addition is one of the four basic operations. The other three are subtraction, multiplication and division. Addition has many important properties and we are going to help you to understand them better.
Counting to one Hundred
Can you count to 50 or even 100?
One More or One Less
Do you know which number is one more or one less?
Doubling a Number
Do you know how to double a number?
Counting backwards
HCan you count backwards from 50 to 1?