Multiplying with Arrays: A Second Grade Approach

What is an array?

• A single line of objects

• A collection of objects arranged randomly

• An arrangement of objects in rows and columns

• A group of objects in a circle

Tags

CCSS.3.OA.A.1

How do rows in an array run?

• Diagonally, corner to corner

• Horizontally, left to right

• In a circular pattern

• Vertically, up and down

Tags

CCSS.3.OA.A.1

How many rows are in an array with two rows of five circles each?

• Four

• Three

• Two

• One

Tags

CCSS.2.OA.C.4

What is the repeated addition sentence for an array with two rows of five circles each?

• 2 + 2 + 2 = 6

• 5 + 5 + 5 = 15

• 2 + 2 = 4

• 5 + 5 = 10

Tags

CCSS.2.OA.C.4

How many columns are in an array with five columns of two circles each?

• Five

• Four

• Three

• Two

Tags

CCSS.2.OA.C.4

What is the repeated addition sentence for an array with five columns of two circles each?

• 5 + 5 = 10

• 2 + 2 + 2 = 6

• 2 + 2 + 2 + 2 + 2 = 10

• 5 + 5 + 5 = 15

Tags

CCSS.2.OA.C.4

What is the multiplication sentence for an array with two rows of five circles each?

• 2 x 2 = 4

• 5 x 5 = 25

• 5 x 2 = 10

• 2 x 5 = 10

Tags

CCSS.3.OA.A.1

What is the multiplication sentence for an array with five columns of two circles each?

• 5 x 5 = 25

• 5 x 2 = 10

• 2 x 2 = 4

• 2 x 5 = 10

Tags

CCSS.3.OA.A.1

How many rows are in an array with three rows of four circles each?

• One

• Four

• Two

• Three

Tags

CCSS.2.OA.C.4

What is the repeated addition sentence for an array with three rows of four circles each?

• 3 + 3 + 3 + 3 = 12

• 4 + 4 = 8

• 4 + 4 + 4 = 12

• 3 + 3 + 3 = 9

Tags

CCSS.2.OA.C.4