Word Problems
Who's Right?
What's the Error?
Solve the Problem
100
Ms. McCarthy wants to pass out candy to her neighborhood kids. There are 16 kids in the neighborhood. She has bags for each kid filled with 27 pieces of candy. How much candy is in all?
27 x 16 = 432 pieces of candy
100
Wayne and Titus and both studying the area model of this problem. Wayne says it is correctly solved out but Titus says 20 x 6 = 180 so the answer should be 960. Who's is correct.
Wayne is correct, this problem was solved correctly.
BONUS: Titus said 20 x 6 = 180 which is incorrect. How can you make it true?
100
70 x 40 = 2,800
40 x 8 = 3,200
70 x 6 = 420
6 x 8 = 48
What is the error?
Error: 40 x 8 = 320
BONUS: Solve this problem for 50 points
100
57 x 19 =
1,083
200
Mr. Cooper's class wants to go on a field trip to the Grammy Museum in Cleveland. Mr. Cooper's has 22 students going on the trip. Each ticket to go into the museum is $25 dollars. How much money will the museum earn from Mr. Cooper's students?
22 x 25 = $550 dollars
200
Evan and Matthew are working out the same problem, 24 times 61. They both use the area model to solve.
Evan gets an answer of 1,464
Matthew gets an answer of 1,404
Solve 24 times 61 using the area model then decide who is correct.
24 x 61 = 1,464
Evan was correct
200
30 x 30 = 900
80 x 2 = 160
30 x 2 = 60
2 x 2 = 4
What is the error and what is the answer?
30 x 30 should be 80 x 30 = 2,400
82 x 32 = 2,624
200
45 x 42 =
1,890
300
Anna Bell and her family are on a trip to the farm. She wants to see how many pumpkins are in the filed. There are 43 rows and each row has 17 pumpkins. How many pumpkins are there in total at the farm?
43 x 17 = 731 pumpkins
300
Molly and Paige are trying to find the product, p, of 75 and 45. They both write out there area model. Which equation is written correctly?
Molly's (70 x 40) + (40 x 5) + (2 x 70) + (5 x 5) = p
Pagie's (70 x 40) + (40 x 5) + (5 x 70) + (5 x 5) = p
Pagie's model!
BONUS POINTS: For 200 points, solve the problem
300
40 x 90 = 4,500
40 x 2 = 80
90 x 1 = 90
1 x 2 = 2
What's the error and answer to the problem?
Error: 40 x 90 = 3,600
41 x 92 = 3,772
300
81 x 52 =
4,212
400
Mrs. Belt has started up a baking business. She is making cupcakes for 33 parties. Each party wants 65 cupcakes. How many cupcakes will Mrs. Belt need to bake?
33 x 65 = 2,145 cupcakes
400
Sean and James are trying to find the product, p, of 89 and 15. They both write out there area model. Which equation is written correctly?
Sean's (80 x 50) + (10 x 5) + (5 x 80) + (5 x 9) = p
James' (80 x 10) + (10 x 9) + (5 x 80) + (5 x 9) = p
James' model is correct!
BONUS POINTS: For 200 points, solve the problem
400
60 x 30 = 1,800
60 x 9 = 540
60 x 2 = 120
9 x 2 = 18
Error: 60 x 2 should be 60 x 9 = 540
BONUS: Solve this area model for 200 points
400
82 x 53 =
4,346