When you multiply a 3-digit number by a 1-digit number, the best way to do this without a calculator is to use short multiplication. This is how you would use short multiplication to find out the ...

Join Mrs. McCartney for a comparison word problem with her friend Professor Barble. Join Mrs. McCartney for a comparison word problem with her friend Professor Barble. Next, get ready to order 3-digit ...

Column addition is a way of adding numbers together. It's helpful when you're adding two-digit or three-digit numbers together. When you do column addition, you lay out the numbers you are adding ...