We Need Help in the Cafeteria!
Mrs. ____ , from the cafeteria, is asking you to help her with some problems she had this morning. Here is what she sent me:
Problem 1:
I have 30 pieces of ham and 5 trays. If everyone has to have the same amount of ham, how many pieces of ham can I put on each tray?
Problem 2:
I have 4 trays for some late students. Each tray has 3 apple slices. How many apple slices are on all 4 trays?
Problem 3:
I have 18 peanut butter and jelly sandwiches ready to go for the field trip. I need to put 2 sandwiches in each bag. How many paper bags am I going to need?
Here is what I need you to do.
- Write an equation for each word problem and use a symbol for the unknown.
- Solve each problem and show your work with pictures.
- Write a note to Mrs._____ explaining why you chose to multiply or divide, so next time she will know what to do.
3rd Grade Performance Task
“We Need Help in the Cafeteria!”
Standards Assessed:
OA.1
Interpret products of whole numbers, e.g., interpret 5 x 7 as the total number of objects in 5 groups of 7 objects each.
OA.2
Interpret whole-number quotients of whole numbers, e.g., interpret 56 ÷ 8 as the number of objects in each share when 56 objects are partitioned equally into 8 shares, or as a number of shares when 56 objects are partitioned into equal shares of 8 objects each.
OA.3
Use multiplication and division within 100 to solve word problems in situations involving equal groups, arrays, and measurement quantities, e.g., by using drawings and equations with a symbol or the unknown number to represent the problem.
OA.4
Determine the unknown whole number in a multiplication or division equation relating three whole numbers.
Name: ______Task:We Need Help in the Cafeteria
Problem 1:
I have 30 pieces of ham and 5 trays.. If everyone has to have the same amount of ham, how many pieces of ham can I put on each tray?
Write an equation with a symbol for the unknown.
Solve the problem using pictures. Circle your answer.
Write a note to Mrs. ______explaining why you used multiplication or division to solve this problem about ham.
Problem 2:
I have 4 trays for some late students. Each tray has 3 apple slices. How many apple slices are on all 4 trays?
Write an equation with a symbol for the unknown.
Solve the problem using pictures. Circle your answer.
Write a note to Mrs. ______explaining why you used multiplication or division to solve this problem about the apple slices.
Problem 3:
I have 18 peanut butter and jelly sandwiches ready to go for the field trip. I need to put 2 sandwiches in each bag. How many paper bags am I going to need?
Write an equation with a symbol for the unknown.
Solve the problem using pictures. Circle your answer.
Write a note to Mrs. ______explaining why you used multiplication or division to solve this problem about the paper bags.