Show:
Division
Multiplication
Repeated Addition
Array
CHALLENGE
100

4 ÷ 2 = ?

4 ÷  2 = 2

100

3 x 2 = ?

3 x 2 = 6

100
Skip counting is one strategy for repeated addition. Name one other way.

Array, numberline, equal groups, doubling.

100

True or False: 

Rows run horizontally.

True. 

100

1000 x 2 = ?

1000 x 2 = 2000

200

15 ÷ 5 = ?

15 ÷ 5 = 3

200

10 x 4 = ?

10 x 4 = 40

200

Repeated addition is the first step to which math operation?

Multiplication
200

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

An array.
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

20 ÷ 4 = ?

20 ÷  4 = 5

300

6 x 7 = ?

6 x 7 = 42

300

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

2 + 2 + 2 + 2 = 8

or 

4 + 4 = 8

300

An array can form which 2D shape?

Square

or 

Rectangle

300

What happens when you divide a number by 0?

Nothing. It is impossible.

400

48 ÷  6 = ?

48 ÷  6 = 8

400

9 x 6 = ?

9 x 6 = 54

400
3 x 6 = 18, could be what as repeated addition?

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

or 

6 + 6 + 6 = 18

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. 
400
What is the total of 8 groups of 7?

56

500

64 ÷ 8 = ?

64 ÷  8 = 8

500

12 x 11 = ? 

12 x 11 = 132

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

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

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.