Multiplication by Grouping

There are 5 classrooms in the 2nd grade. Each classroom has 4 round tables with 5 chairs at each table. Which equation would you use to solve for the total number of chairs?

• 4x5x5

• 4x5x2

• 2x4x5

• 5+2X4+5

Tags

CCSS.3.OA.A.3

Mrs. Hodge bought 3 packets of pencils. Each packet has 5 blue pencils and 7 red pencils. Which problem represents the problem?

• 3+5+7

• 3x5x7

• 3+5x7

• (3x5)+(3X7)

Tags

CCSS.6.NS.B.4

When we multiply the number of groups times the amount in each group we get the...

Tags

CCSS.3.OA.A.3

How many markers are there in 236 such boxes?

Tags

CCSS.5.NBT.B.5

What multiplication problem would help you find out how many dots are on the blocks?

• 6 x 6 = 36

• 4 x 4 = 16

• 4 x 6 = 24

• 3 x 6 =18

Tags

CCSS.3.OA.A.1

Which problem correctly represents this picture?

• 4 X 6 = 24

• 6 X 4 = 24

Tags

CCSS.3.OA.A.1

Mrs Lee bought 72 boxes of sweets.

There were 62 sweets in each box.

How many sweets did Mrs Lee buy altogether?

Tags

CCSS.3.OA.A.3

Combining equal groups

• Multiplication

• Division

• Addition

• Subtraction

Tags

CCSS.2.OA.C.3

When three or more numbers are multiplied, the product is the same regardless of the grouping of the factors

• Zero property

• Identity property

• Commutative property

• Associative property

Tags

CCSS.3.OA.B.5

Shows the number of groups and the number in each group

• Grouping model

• Array

• Repeated addition

• Number line

Tags

CCSS.4.NBT.B.5