* Learning Goal
Decide what the problem is asking first. Then choose an operation and show how you know. This is practice set 5 of 10.
1 Equal Groups
Write a repeated addition sentence and a multiplication sentence.
1. There are 7 bags with 3 marbles in each bag.
2. There are 5 trays with 2 muffins on each tray.
2 Solve the Story Problem
Show the operation and explain your thinking.
A teacher sets 3 pencils on each table. There are 8 tables, and then 4 pencils stay in the box. How many pencils are ready to use?
3 Choose the Best Strategy
Tell whether you would use addition, subtraction, or multiplication. Then solve.
| 5 shelves with 4 books each | |
| 19 leaves on the branch, 8 fall down | |
| 12 red beads and 9 silver beads | |
✦ SBA-Style Reflection
Answer using evidence from your work above. On the state test (Smarter Balanced), you will need to explain your thinking clearly.
Constructed Response: Look at your answers above. Choose one and explain how you decided on your answer. Use at least one detail or example.