Value Pak shows you the different ways to compare 2-digit numbers. (15m 44s) Add Tens and Ones Video has Closed CaptionsCC Join Mrs. Markavich for a word problem with her friend Professor Barble ...

Decompose numbers to subtract. Engage in a Number Talk focused on subtraction strategies. Can you solve the problem without pencil and paper? Play a fun subtraction game called "Less than 10".

You should get a two digit number -- the digit in the ten's place is the number that was multiplied by 5 and the digit in the one's place is the other number chosen at the beginning. (99 - 14 = 85 ...

You might want to break out a calculator, because it takes a genius to solve these tricky math riddles It’s math o’clock!

Let’s look at the order and composition of 1-digit, 2-digit, and 3-digit numbers in these 10 million passwords.