3.4 Arrays

Which goes up and down (vertical)?

• columns

• rows

Which goes across (horizontal) ?

• columns

• rows

How many rows in this array?

• 2
• 4
• 8
• 6

How many columns in this array?

• 2

• 4

• 8

• 6

Which repeated addition sentence represents this rectangular array?

• 4+4+4+4=16

• 2+2+2+2=8

• 2+2=4

• 4+3=8

Name the array.

• 3 x 6

• 15

• 3 x 5

• blue circles

Arrays are made up of ______ and ______.

• numbers and letters

• circles and squares

• rows and columns

• stars and stripes

name this array

• 3 x 4

• 12

• 21

• 5 x 6

name this array

• 4 x 3

• 5 x 6

• House's

• 2 x 4

2. What direction do columns go?

• Up and Down

• Diagonal

• Across