You regroup because the 4 in 64 plus the 3 in 43 equals 7, then you move onto the tens place, and 60 plus 40 equals 100, so that is how. Your answer is 107.
Answer: C
The total height of a 3 inch tree after it grows 2 inches per month
Answer: 8 balloons per box
8x18 + 8x12 = 144+96 = 240
400, if you can buy 4 tickets for $6 you can buy 400 for $600
