Two Step Detectives Worksheet
3
Two-Step Detectives
Eureka Math Review • Guided Practice (RDW)
Name
Date
R Read & Identify Knowns
D Draw a Tape Diagram
W Write Equation & Sentence
1
The Apple Orchard: Leo picks 4 baskets of apples. Each basket holds 8 apples. On the way home, he gives 15 apples to his grandmother for a pie. How many apples does Leo have left?
Step 1 Find the total number of apples Leo picked.
Let t = total picked
D Draw Tape Diagram or Equal Groups
Tape Diagram / Model Workspace
R Read & Plan
What operation joins 4 equal groups of 8?
W Write Equation & Answer
Step 1 Equation (with letter):
Step 1 Result Statement:
Step 2 Find how many apples Leo has left.
Let a = apples left
D Draw Part-Whole Tape Diagram
Tape Diagram / Model Workspace
R Read & Plan
Use your total from Step 1. Does giving away mean add or subtract?
W Final Equation & Sentence
Final Equation:
Complete Sentence with Units:
Grade 3 Mathematics • Module Operations Review Page 1 of 4
3
Two-Step Detectives
Eureka Math Review • Guided Practice (RDW)
Name
2
The Book Fair Mystery: Maya brings $45 to the school book fair. She buys a graphic novel for $17. She decides to spend all the rest of her money on bookmark packs that cost $4 each. How many bookmark packs does Maya buy?
Step 1 Find how much money Maya has left after the book.
Let m = money left
D Draw Part-Whole Tape Diagram
Tape Diagram / Model Workspace
R Read & Plan
Total money is $45. Part spent is $17. What operation finds the missing part?
W Write Equation & Answer
Step 1 Equation (with letter):
Step 1 Result Statement:
Step 2 Find how many $4 bookmark packs Maya can buy.
Let b = bookmark packs
D Draw Equal Groups or Tape Diagram
Tape Diagram / Model Workspace
R Read & Plan
Share your remaining money into groups of $4. What operation makes equal groups?
W Final Equation & Sentence
Final Equation:
Complete Sentence with Units:
✓
Mathematician Self-Check:
Tape diagrams labeled Letter for unknown Sentence has units
Grade 3 Mathematics • Module Operations Review Page 2 of 4
3
Two-Step Detectives
Independent Practice • Step-by-Step Organization
Name
3
The Community Garden: Liam and Sophia are planting tomato seeds for their class garden. Liam plants 14 seeds, and Sophia plants 16 seeds. They place all of their seeds into equal rows with 5 seeds in each row. How many rows of seeds do they plant altogether?
Step 1 Find the intermediate unknown.
Choose a letter for your unknown
D Draw Tape Diagram or Model
Step 1 Tape Diagram Workspace
W Write Step 1 Work
Equation with Letter:
Step 1 Answer with Units:
Step 2 Answer the final question.
Use your Step 1 result
D Draw Tape Diagram or Model
Step 2 Tape Diagram Workspace
W Write Final Work
Final Equation:
Complete Sentence with Units:
Grade 3 Mathematics • Module Operations Review Page 3 of 4
3
Two-Step Detectives
Independent Practice • Step-by-Step Organization
Name
4
The Art Club Gallery: The art club is hanging student artwork for the school exhibition. They hang 3 small banners that need 6 hanging clips each. They also hang a giant welcome mural that needs 14 hanging clips. How many hanging clips does the art club use in all?
Step 1 Find the intermediate unknown.
Choose a letter for your unknown
D Draw Tape Diagram or Model
Step 1 Tape Diagram Workspace
W Write Step 1 Work
Equation with Letter:
Step 1 Answer with Units:
Step 2 Answer the final question.
Use your Step 1 result
D Draw Tape Diagram or Model
Step 2 Tape Diagram Workspace
W Write Final Work
Final Equation:
Complete Sentence with Units:
Grade 3 Mathematics • Module Operations Review Page 4 of 4
