Lesson 1
Name __________________________________________
Multiplying
You can multiply to join equal groups and find how many in all.
Examples
Solve
Fill in the blanks.
___________ + ___________ + ___________ = 3 × 2
Lesson 2
Name __________________________________________
Multiplying by 2
You can multiply numbers by 2. The product will always be an even number.
Example
Solve
Multiply. Write the product.
There are 6 rabbits. How many ears do the rabbits have in all? Hint . . . How many ears does 1 rabbit have?
There are 6 groups of ___________.
___________ × ___________ = ___________ ears
Lesson 3
Name __________________________________________
Multiplying by 3
There is more than one way to multiply by 3.
Examples
Solve
Multiply. Add or skip count to help find the product.
Lesson 4
Name __________________________________________
Multiplying by 4
You know how to multiply by 2. This can help you multiply by 4.
Example
Solve
Find the product.
Write the multiplication sentence that shows how to find the number of shells.
Lesson 5
Name __________________________________________
Multiplying by 5
You can multiply numbers by 5. The product will always end in 0 or 5.
Example
Solve
Multiply. Skip count to help find the product.
Elena finds 6 sea stars. Each sea star has 5 arms. How many arms do all the sea stars have?
___________ × ___________ = ___________ arms
Lesson 6
Name __________________________________________
Multiplying by 0 and 1
0 and 1 are special factors.
Examples
Solve
Multiply.
There are 8 nests. There is 1 bird in each nest. There are 0 eggs in each nest. How many birds are there in all? How many eggs?
___________ × ___________ = ___________ birds
___________ × ___________ = ___________ eggs
Lesson 7
Name __________________________________________
Multiplying in Any Order
You can multiply factors in any order. The product is the same.
Example
Solve
Multiply.
Diego uses 4 × 5 to find the total number of marbles. Sarah uses 5 × 4. Will they get the same product? Why or why not?
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Lesson 8
Name __________________________________________
Multiplying by 1 Through 5
You can multiply by 1 through 5. Use what you have learned about solving problems with different factors.
Examples
Solve
Multiply. Add or skip count to help find the product if you need to.
Andre has 3 bags of rocks. There are 5 green rocks and 2 blue rocks in each bag. How many green rocks does Andre have in all?
___________ × ___________ = ___________ green rocks
Lesson 9
Name __________________________________________
Problem Solving
You can draw pictures to help solve problems.
Example
Solve
Draw pictures to help you solve these problems.
Franz bought 3 bags of lemons. Each bag has 7 lemons. How many lemons does he have in all?
The zoo has 11 black bears and 13 brown bears. How many bears live at the zoo?
Nick tries to solve 2 × 1. He drew these circles.
Why will his answer be wrong?
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Chapter 4 Test
Fill in the blanks.
___________ + ___________ = 2 × 5
Write the multiplication sentence that shows how to find the number of apples.
Write the number sentence that matches the picture.
Multiply.
Kim has 5 gloves. How many fingers do the gloves have in all? Draw to help you multiply.
I am a factor in a multiplication sentence. The other factor is 3. The product is 0.
What number am I? How do you know?
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