Math Homework 10-10

Which equation matches this array?

• 5 x 3 = 15

• 4 x 3 = 12

• 3 x 4 = 12

• 3 x 5 = 15

What multiplication expression does this array represent?
X X X X X 
X X X X X 
X X X X X 
X X X X X 
X X X X X 

• 5 x 4 = 

• 5 + 5 = 

• 4 x 6 = 

• 5 x 5 = 

The answer to a multiplication problem is called the...

• dividend

• subtrahend

• product

• sum

There are:

• 4 rows of 4

• 3 rows of 4

• 3 rows of 5

• 4 rows of 3

An array is...

• An arrangement of objects, pictures, or numbers in columns and rows

• An arrangement of objects, pictures, or numbers in unicorns and rainbows

• An arrangement of objects, pictures, or numbers in cheese and crackers

• An arrangement of objects, pictures, or numbers in dolphins and sea turtles

Use the commutative property of multiplication to solve the equation.
5 x 2 = 10, so ____ x 5 = 10

• 10

• 5

• 2

• 7

Jaime used an addition expression to find 7 × 4. Which expression did he use?

• 7 + 7 + 7

•  7 + 7 + 7 + 7

• 7 + 7 + 7 + 7 + 7

• 7 + 7 + 7 + 7 + 7 + 7

Alia helps her teacher by giving a pack of pencils to each of the 10 students. There are 4 pencils in each pack. How many pencils were there in all?

• 14 pencils

• 16 pencils

• 40 pencils

• 10 pencils

  A new bookcase in the library has 7 shelves. The librarian puts 5 books on each shelf. Which sentence tells how many books are in the new bookcase?

• 7 × 5 = 35

• 7 + 5 = 12

• 7 + 7 + 7 = 21

• 5 + 5 + 5 + 5 + 5 = 25

If you score under 80% do you need to try again?

• YES! If you do not you are out of the homework club.

• No