Are these addends broken down correctly: 529 + 254 = (500 + 200) + (20 + 54) + (9 + 4)? If not, what is the correct way to break them down?
No - It should be (500 + 200) + (20 + 50) + (9 + 4)
15
Forever's basketball game begins at 1:00 in the afternoon. The first 138 people arrive at 12:30. At 12:40, another 207 people arrive. At 12:50, 42 people arrive. How many people will watch the game?
387
15
Mrs. Ukrainski's class raised $483 during the fall fundraiser. The class raised $417 during the spring fundraiser. How much did Mrs. Ukrainski's class raise altogether?
