Apply addition and subtraction in multi-step word problems through interactive community book donation scenarios.
A community donated 215 books on Monday and 187 books on Tuesday. On Wednesday, they donated 96 fewer books than the total from Monday and Tuesday. How many books were donated on Wednesday?
Community Donation Challenge
Master multi-step problem solving through interactive activities and real-world scenarios
Step 1: Read carefully
Understand what the problem is asking
Step 2: Identify what you need to find
What is the question asking for?
Step 3: Plan your solution
What operations do you need?
Step 4: Solve step by step
Work through each operation
What we know:
Monday: 215, Tuesday: 187, Wednesday: 96 fewer
What we need:
How many books on Wednesday?
Plan:
First add Monday + Tuesday, then subtract 96
Solve:
215 + 187 = 402, 402 - 96 = 306
Draw a line diagram
Show the relationships between numbers
Monday + Tuesday = Total
215 + 187 = 402
Wednesday = Total - 96
402 - 96 = 306
Book Donation: 215 + 187 - 96 = 306
Food Drive: 300 + 150 - 75 = 375
Clothing Drive: 456 - 123 + 89 = 422
Park Cleanup: 500 - 200 + 100 = 400
Book Donation: 215 + 187 - 96 = 306 books
Food Drive: 300 + 150 - 75 = 375 cans
Clothing Drive: 456 - 123 + 89 = 422 items
Park Cleanup: 500 - 200 + 100 = 400 volunteers
Addition then Subtraction: 215 + 187 - 96
Subtraction then Addition: 456 - 123 + 89
Multiple Additions: 300 + 150 + 75
Complex Operations: 500 - 200 + 100 - 50