Mayim collected 128 shells on the beach on Friday. She collected 179 shells on Saturday and 103 shells on Sunday. Which is the best estimate for the total number of shells Mayim collected?
Question 3
3.
Angel's school is having a used book sale. Their goal is to sell 600 books. They sold 240 books last week. This week they have sold 297 books. How many more books does the school need to sell to reach its goal?
Question 4
4.
A train has four cars. There are 29 people in the first car and 39 people in the second car. There are 33 people in the third car and 42 people in the fourth car. Which is closest to the total number of people in the second and third car?