Multiplication and Division Jeopardy

Division

100

4 ÷ 2 = ?

4 ÷  2 = 2

200

15 ÷ 5 = ?

15 ÷ 5 = 3

300

20 ÷ 4 = ?

20 ÷  4 = 5

400

48 ÷  6 = ?

48 ÷  6 = 8

500

64 ÷ 8 = ?

64 ÷  8 = 8

Multiplication

100

3 x 2 = ?

3 x 2 = 6

200

10 x 4 = ?

10 x 4 = 40

300

6 x 7 = ?

6 x 7 = 42

400

9 x 6 = ?

9 x 6 = 54

500

12 x 11 = ? 

12 x 11 = 132

Repeated Addition

100

Skip counting is one strategy for repeated addition. Name one other way.

Array, numberline, equal groups, doubling.

200

Repeated addition is the first step to which math operation?

Multiplication

300

2 x 4 = 8, could be what as repeated addition? 

2 + 2 + 2 + 2 = 8

or 

4 + 4 = 8

400

3 x 6 = 18, could be what as repeated addition?

3 + 3 + 3 + 3 + 3 + 3 = 18

or 

6 + 6 + 6 = 18

500

7 groups of 9 means what as repeated addition?

7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 + 7 = 63

or 

9 + 9 + 9 + 9 + 9 + 9 + 9 = 63

Array

100

True or False: 

Rows run horizontally.

True. 

200

This word describes a set of objects arranged neatly in rows and columns to help visualize multiplication. 

An array.

300

An array can form which 2D shape?

Square

or 

Rectangle

400

How can you find the total number of items in an array (not counting)?

By multiplying the number of rows by the number of columns. 

500

Which of the following is NOT true about arrays?
A) Arrays show multiplication visually

B) Arrays always have the same number of rows and columns

C) Arrays can be used to model area

B) Arrays always have the same number of rows and columns IS NOT TRUE

CHALLENGE

100

1000 x 2 = ?

1000 x 2 = 2000

200

If you double the number of rows in an array, while the columns stay the same. How does the total number of items change? 

The total doubles.

300

What happens when you divide a number by 0?

Nothing. It is impossible.

400

What is the total of 8 groups of 7?

56

500

Name two different ways to express "multiplication" as an operation "x." (Example: 2 multiplied by 2)

Times, groups/sets of, factors, repeated, area, exponents.