* Learning Goal
Decide what the problem is asking first. Then choose an operation and show how you know. This is practice set 7 of 10.
1 Equal Groups
Write a repeated addition sentence and a multiplication sentence.
1. There are 9 bags with 3 marbles in each bag.
2. There are 5 trays with 4 muffins on each tray.
2 Solve the Story Problem
Show the operation and explain your thinking.
A camp packs 4 flashlights in each crate. There are 7 crates, and then 3 extra flashlights go into a backpack. How many flashlights are there?
3 Choose the Best Strategy
Tell whether you would use addition, subtraction, or multiplication. Then solve.
| 9 packs with 2 cards each | |
| 18 cookies on the plate, 10 are eaten | |
| 7 hats and 11 scarves | |
✦ 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.