Arrays and Multiplication

Does this picture represent equal groups or an array?

• Equal Groups

• Array

• Neither

What shows objects arranged in rows and columns?

• equal groups

• repeated addition

• arrays

• number line

What multiplication sentence should Brenda write for this array?

• 6 x 8

• 6 x 6

• 6 x 7

• 7 x 8

What multiplication sentence should Jason write for this array?

• 3 x 6

• 3 x 5

• 3 x 7

• 6 x 4

David is arranging some stamps in an album. The album has 7 rows of stamps, with 8 stamps in each row. What multiplication sentence would describe the stamps in David's album?

• 8 + 8 + 8 + 8 + 8 + 8 + 8 = 56

• 7 x 8 = 56

• 7 + 7 + 7 + 7 + 7 + 7 + 7 = 49

• 7 + 8 = 15

What multiplication sentence should Carlos write for this array?

• 5 x 9

• 5 + 8

• 5 x 7

• 5 x 8

What multiplication sentence should Allison write for this array?

• 4 x 8

• 4 x 9

• 4 x 6

• 9 x 5

What multiplication sentence should Billy write for this array?

• 4 x 5

• 3 x 4

• 4 x 4

• 4 x 6

Mr. Lopez planted 8 rows of apple trees on his farm. He planted 5 trees in each row. How many trees did Mr. Lopez plant?

• 13

• 45

• 40

• 25

Which repeated addition sentence represents this rectangular array?

• 4 + 4 + 4 + 4 = 16

• 4 + 4 + 4 + 4 + 4 = 20

• 4 x 4 = 16

• 4 x 5 = 20