Two rock samples have masses of 52.24 grams and 8.98 grams. Which of the following is the best estimate of the total mass of the rock samples? Show your work for full credit.
Required
1 point
1
Question 2
2.
Owen spent $1.29 on a pen and $0.38 on an eraser at the school store.
What was the total amount he spent?
Use the model to help you. Show your work for full credit.
Required
1 point
1
Question 3
3.
Solve and show your work for credit.
8.73 + 3.47 =
Required
1 point
1
Question 4
4.
Solve and show your work for credit.
13.5 - 2.8 =
Required
1 point
1
Question 5
5.
Sophie put up two bookshelves in her room. The top shelf is 3.88 feet long and the bottom shelf is 4.56 feet long. What is the combined length of the two bookshelves? Show your work for full credit.
Required
1 point
1
Question 6
6.
Sophie put up two bookshelves in her room. The top shelf is 3.88 feet long and the bottom shelf is 4.56 feet long. How much longer is the bottom shelf than the top shelf? Show your work for full credit.
Required
1 point
1
Question 7
7.
Mr. Lee sold 8.6 pounds of apples and Ms. Perry sold 40.44 pounds of apples at the farmer’s market. How many more pounds of apples did Ms. Perry sell than Mr. Lee? Show your work for full credit.
Required
2 points
2
Question 8
8.
Ricardo drove 55.6 miles on Monday and 9.78 miles on Tuesday. What is the total distance he drove on the two days? Create an illustration to show your thinking. Don't forget to include the sum.