Unit 5 Reveal Math Review(Siebert)

Vocabulary

100

The _______________________ says that you can break-apart one factor from a multiplication problem to make two smaller multiplication problems to make it easier to multiply.

Distributive Property

200

When you _______ you break a number into parts using addition.

Decompose

300

An ______________ is an arrangment of objects in rows and columns.

array

400

Repeated addition, drawing an array, drawing equal groups, using decomposing, and skip counting are all strategies to solve a  _______________ equation. 

Multiplication

500

If you find a number that you don't know in an equation, you are finding the _____________.

For example 3 x __ = 18.  

6 would be the _________ number in this equation. 

unknown

Word Problems

100

What is the mistake with the following problem?

6 x 8 = (3 x 4) +(3 x 4) 

6 x 8 = 12 + 12 

6 x 8 = 24

They decomposed both the 6 and the 8. You can only decompose ONE factor.

200

Tristan has 6 dinosaurs. Each dinosaur has 4 feet. How many dinosaur feet are there total?

(include a label)

24 dinosaur feet

300

Miss Baxter has 4 jars of 10 Starbursts. Mrs.Davis has 6 jars of 9 Starbursts. Caleb says Mrs. Davis has the most Starbursts. Is Caleb correct? 

Yes. Mrs. Davis has 54 and Miss Baxter has 40

400

There are 4 groups of 5 desks in the room. There are 30 students in the class. How many more groups of 5 does there need to be in the classroom to have enough desks for every student. 

2 more groups of 5 (10 more desks) 

500

Maeve has 4 packs of Skittles. Each pack has 8 Skittles in it. She gives 1 pack to Makaila and 1 pack to Noah. How many Skittles does Maeve have left now?

16 skittles 

Fact Fluency

100

3 x 6 = ?

18

200

3 x 8 = ?

24

300

5 x 9 =?

45

400

7 x 9 = ?

63

500

8 x 8 = ?

64

Distributive Property

100

What are all of the possible ways to decompose a 6?

1+5

2+4

3+3

200

What are the friendly factors that you want to decompose a number into if you can? (4 numbers)

1, 2, 5, 10

300

What number makes the equation true?

3 x 7 = (3 x 2) + (3 x __)

5

400

What is the missing number?

7 x ____ = (2 x 9) + (5 x 9)

9

500

Use decomposing to solve the following multiplication equation:   8 x 6 =

You must explain fully how to decompose it and you must write the new equation on the board.

Answers may vary. MUST decompose the 8 OR 6

(48)

There are 4 different ways to break the 8 up.

There are 3 different ways to break the 6 up.

Random

100

What did Mr. Siebert dress up as for Halloween?

Waldo

200

Who is Mr. Siebert's closest teacher friend at Hillside?

Mr. Hart

300

What is Mr. Siebert's daughter's name?

Ava

400

What does Mr. Siebert say all the time about how much you should write when answering questions?

"The more you write, the better chance you get full credit"

-answer should be close to this.  It doesn't have to be the exact words.

500

How many windows does the Empire State Building have?

6,514 windows