Unit 2 - Multiplication

Place Value

300

A mystery number has the features below. The number has 5 digits. The digit 3 is in the tens and tenths places. The digit 7 is in the hundreds and hundredths places. The digit 4 also appears in the number. Based on the clues, what is the mystery number?

734.37

400

In the number below, the digit 2 appears three times.

325,012.782

What place values (location) are the 2's placed in?

ten thousands

ones

thousandths

500

Write this number in word form.

305.71

Three hundred five and seventy one hudredths

2x1,3x1

100

31 x 5

155

200

42 x 7

294

300

135 x 3

405

400

507 x 4

2,028

500

693 x 2

1,386

4x1,2x2

100

5,693 x 8

45,584

200

2,721 x 9

24,489

300

55 x 44

2,420

400

35 x 68

2,380

500

51 x 23

1,173

3x2 and word problems

100

492 x 12

5,904

200

785 x 36

28,260

300

The cafeteria workers at the Lakeside Summer Camp cook exactly 148 eggs each morning for breakfast for the campers. Breakfast is served every day for 42 days. What is the total number of eggs cooked at Lakeside Summer Camp?

6,216 eggs

400

Each of the 492 people who came to a school football game paid $25 for a ticket. How much ticket money did the school collect?

$12,300

500

Several schools are sending 32 buses full of students to a science museum. Each bus can hold 71 students. How many students are going to the science museum?

2,272 students

Factors and Prime Factorization

100

Find the Factors for 24

1,2,3,4,6,8,12,24

200

Find the factors for 50

1,2,5,10,25,50

300

Prime Factorize the number 100. Make sure to write the equation.

100 = 2 x 2 x 5 x 5 

or

100 = 2² x 5²

400

Prime Factorize the number 200. Make sure you write the equation.

200 = 2 x 2 x 2 x 5 x 5

or 

200 = 2³ x 5²

500

Prime Factorize the number 300. Make sure to write the equation.

300 = 2 x 2 x 3 x 5 x 5

or 

300 = 2² x 3 x 5²