INTO MATH LESSON 1 & 2

HMH Into Math

3rd Grade

What is multiplication?

To multiply means to add equal groups

​Ways to solve multiplication!

There are may ways to solve multiplication we have practiced one way (arrays) and now we will learn 2 other ways​

Modeling Multiplication

I can model multiplication using number lines and set models.

​1 times multiplication

• When you multiply ones the number besides the one is always the answer

• ​For example these are some multiplication problems

• ​1x1=1

• ​1x2=2

• ​1x3=3

• ​1x4=4

• ​1x5=5

Multiple Choice

1X5

• 6

• 15

• 5

• 1

​2 times multiplication

• ​2x1=2

• ​2x2=4

• ​2x3=6

• ​2x4=8

• ​2x5=10

• ​2x6=12

• ​2x7=14

• ​2x8=16

• ​2x9=18

• ​2x10=20

Multiple Choice

2x6

• 5

• 12

• 8

• 13

​3 times multiplication

• ​3x1=3

• ​3x2=6

• ​3x3=9

• ​3x4=12

• ​3x5=15

• ​3x6=18

• ​3x7=21

• ​3x8=24

• ​3x9=27

• ​3x10=30

Multiple Choice

3x5

• 123,456,789

• 14

• 15

• 16

​4 times multiplication

• 1x4=4

• ​2x4=8

• ​3x4=12

• ​4x4=16

• ​4x5=20

• ​4x6=24

• ​4x7=28

• ​4x8=32

• ​4x9=36

• ​4x10=40

Grab your chart

Are you ready to respond to these questions?

Multiple Choice

3 x 3

• 9

• 2

• 4

Multiple Choice

4 x 3

• 12

• 28

• 18

Good work!

Now onto our last digit.

4

Four seems hard but it isnt. You probably think it is hard because it is in a higher level, but it is not.

Ready mate?

Onto the questions!

Multiple Choice

4 x 1

• 4

• 8

• 2

Multiple Choice

8 x 4

• 32

• 28

• 9

Hurry! You finished.

:D

Times 5

• When you multiply by five you are adding the same number 5 times

Multiple Choice

What multiplication sentence does this array show?

• 6x4=24

• 5x4=20

• 4x4=16

• 4+4+4+4=16

Fill in the Blanks

An array must have

rows and columns.

Multiple Select

Which addition and multiplication sentences are true for this array? Check all that apply

• 2+2+2+2+2=10

• 3+3+3+3+3=15

• 5+3+5+3=16

• 3x5=15

Multiple Choice

A number that is multiplied by another number is...

• a multiple

• a array

• a quotient

• a factor

Multiple Select

Check the box that shows 4x4=16 and 4+4+4+4

Multiple Select

A strategy used to find multiples of a number...

• skip counting

• numberline

• factor

• quo

Multiple Choice

Combined means to...

• take apart

• share equally

• put together

• find the difference

Fill in the Blanks

A pattern of adding the

amount over and over.

Multiple Choice

Which of these is an example of an array?

Multiple Choice

The answer to a multiplication problem is...

• factor

• product

• quotient

• array

Multiple Choice

The answer to a division problem

• quotient

• product

• factor

• array

Suppose you are building more robots like this
one. Choose any number of robots to build.
How many wheels do you need?

SPARK YOUR LEARNING

Suppose you had chosen 4 robots to
build. Complete the statement.
If I build 4 robots with ____ wheels
each, I need ____ wheels.

Suppose you are building more robots like this
one. Choose any number of robots to build.
How many wheels do you need?

SPARK YOUR LEARNING

Suppose you had chosen 4 robots to
build. Complete the statement.
If I build 4 robots with ____ wheels
each, I need ____ wheels.

3

3

12

Groups with an equal number of items in each group.

3 groups of 4

3 x 4 = 12

Write a multiplication problem

to match the model:

5 groups of 4

5 x 4 = 20

BUILD UNDERSTANDING

Raj makes 5 robots like this one. How many legs do the
5 robots have? ____

BUILD UNDERSTANDING

Raj makes 5 robots like this one. How many legs do the
5 robots have? ____
20

BUILD UNDERSTANDING

What is the same about each of your groups?

BUILD UNDERSTANDING

What is the same about each of your groups?

CONNECT TO VOCABULARY

Times 5

• 5 times 1 is 5

• 5 times 2 is 10

• 5 times 3 is 15

• 5 times 4 is 20

• 5 times 5 is 25

• 6 times 5 is 30

• 7 times 5 is 35

Repeatedly adding together the same number.

4 + 4 + 4 + 4 + 4 = 20

4 added 5 times

4 x 5 = 20

Write a multiplication problem to

match the addition problem:

6 + 6 + 6 + 6 + 6 = 30

​LET'S PRACTICE

Multiple Choice

What is $$1 \times 2$$ ?

• 1

• 2

• 3

• 4

Multiple Choice

Which array represents the multiplication fact 2 x 4?

Multiple Choice

Which multiplication fact represents this array?

• 4 x 2

• 4 x 3

• 5 x 2

• 2 x 5

Multiple Choice

Which multiplication fact represents this array?

• 3 x 4

• 3 x 6

• 3 x 5

• 6 x 3

Multiple Choice

Which multiplication fact represents this array?

• 3 x 4

• 3 x 3

• 4 x 4

• 4 x 3

Multiple Choice

Which array represents the multiplication fact 7 x 4?

Multiple Choice

Which array represents the multiplication fact 4 x 5?

Multiple Choice

Which array represents the multiplication fact 3 x 3?

Multiple Choice

What array represents this multiplication fact, 5 x 5 = 25?

Multiple Choice

How can we represent the multiplication sentence '4 x 2 = 8' using an array?

• Four rows and two columns

• One row and eight columns

• Eight rows and one column

• Four groups of two

Multiple Choice

What multiplication fact does this array represent?

• 4 x 4 = 16

• 5 x 4 = 20

• 5 x 5 =25

• 4 x 5 = 20

Multiple Choice

What multiplication fact does this array represent?

• 4 x 4 = 16

• 3 x 4 = 12

• 3 x 3 = 9

• 3 x 5 = 15

Multiple Choice

Select the equation that matches the array.

• 3 + 3 = 6
• 9 + 0 = 9
• 3 x 9 = 27
• 3 x 3 = 9

Multiple Choice

Which of the following is an example of an array in real life?

• Egg cartons

• Bread slices

• Pizza slices

• Ice cream cones

Fill in the Blanks

Complete the equation to match this array.

x 3 = 6

Multiple Choice

Which of the following shows a repeated addition sentence to match this array?

• 4 + 4 + 4 + 4 = 16

• 4 + 4 + 4 = 12