In addition, you add a number and another number to make a bigger number. You use a plus sign,it looks like this +.You can do 1+1=2.
In subtraction,you subtract one number and a number to get a smaller number.The subtracting sign looks like this -.You can do 13-6=7.
In multiplication,you have a number and another number.You would do the number that many times as the other number.6 times 6 =36.
In division,you have a number and like multiplication you do something slightly different.You take a number and then see how many times it takes you to get to another number.4 divided by 4 =1.