2x0 =0 2 times 5 is 10 you carry the one and 2x1=2 + the one you carried so its 3 now put those in order 300 now do 1 times 150 it would be 150 but when you multiply the last number you always put a zero in the ones place then the number so the answer would be 1500 plus 300= 1800 1800 would be the answer
First you have to know that the biggest number goes in the inside of the box and the small on the outside of the box. Then you see if that number can go into the inside number evenly. And if not you have to see how many times it can go into there then put it on top of the box over the number we used. Then subtract
