Unit 4 Contents

Check-In: Questions 17–19

17. Sort the following problems into two groups: Mental math or paper and pencil. Show or tell how you solved them.
1. 64 7
2. 127 4
3. 8 543
4. 827 9
5. 5 284
6. 328 6
18. Noisemakers will be passed out to home team students to show their school spirit. A box holds 288 noisemakers. The school ordered 9 boxes. How many noisemakers will the school receive?
19. The food stand ordered 6 boxes of peanuts. Each box holds 216 packages. How many packages of peanuts will be at the food stand?

Solve the following problems using a variety of strategies. Show all of your work. Use the Multidigit Multiplication Strategies Menu in the Reference section.

Bessie Coleman School is setting up a school store. Luis is in charge of ordering supplies.

1. Pencils are packaged in one-gross boxes (one gross = 144 items). Luis ordered 9 boxes. How many pencils will the store have?
2. Scissors come 25 to a box. Four boxes make up one carton. Luis ordered 5 cartons. How many scissors will the store have?
3. Red pens come in boxes of 6 pens each. Luis ordered 340 boxes. How many red pens will the store have?
4. The store has 87 erasers in stock. They ordered 3 more boxes. Each box contains 240 erasers. When the boxes arrive, how many erasers will they have?