Arrays to Strip Diagram

Select the correct number model with the rectangular array

• 5+5+5=15
• 3+3+3=9
• 3+3+3+3+3=15
• 5+5+5+5+5=30

Which one goes up and down?

• columns
• rows

Select the correct number model with the rectangular array

• 4+4+4+4=16
• 2+2+2+2=8
• 5+5+5+5=20
• 3+3+3+3=12

Which one goes across ?

• columns
• rows

2+7+6=

• 8
• 17
• 15
• 27

Abby drew this strip diagram.  What equation matches her strip diagram.

• 30 x 5 = C
• (30 x 5) + 11 = C
• (30 ÷ 5) + 11 = C
• 30 + 11 + 5 = C

What equation matches the strip diagram?

• 36 - 9 = M
• 36 x M = 9
• 36 ÷ 9 = M
• M x 8 = 36

What is the solution of 9 + k = 18

• 18

• 9

• 8

• 7

What is the solution of r - 11 = 5

• 11

• 14

• 15

• 16

What is the solution of a - 5 = 9

• 14

• 9

• 5

• 4