Addition/Subtraction
Multiplicative Comparison
Potluck
Fast Facts
Name that Number
100

What is the math vocabulary word for the answer to a subtraction problem?

Difference

100

True or False. 

We use the Multiplicative Comparison strategy to compare two numbers with multiplication.

TRUE!

100

What is a digit?

A digit is a symbol that makes up numbers.It also includes 0,1,2,3,4,5,6,7,8,9

100

4 x 3 = ?

4 x 3 = 12

100

I am a number with a 

4 in the ones place

9 in the hundreds place                                           

 3 in the tens place


934!

200

What is the answer to an addition problem?



The Sum

200

What is the best way to represent a Multiplicative Comparison statement with pictures?

With a bar model!

200

True or False- The value of a digit is where it sits in a number. 


ex. In 352 the value of the 3 is hundreds.

False!

Value is how much the digit is worth based on its place value. 

Bonus: In 352, the value of the 3 is?

200

5 x 4 =?

5 x 4 = 20

200

I have...


An even digit below 3 in the ones place

An odd digit in the thousands place above 8

A 2 in the tens place

a 5 in the hundreds place


8,520

300

Solve the following

27,944 + 4,922

32,866

300

True or False. 

Does the following statement have a Multiplicative Comparison statement? 

Bobby as 4 times as many students in his homeroom than his Math class. Georgia has 2 times as many students in her homeroom than Math class. How many students are in Georgia's Math class?

False! There is no question! 


Bonus: Rewrite this scenario so that is does represent a Multiplicative Comparison statement.

300

True or false, A decade is a period of 10.

True!

300

6 x 3 =?

6 x 3 = 18


300

Write the following number in expanded form. 

7,831

7,000 + 800 + 30 + 1

400

When do I need to regroup in Subtraction?

When the digit I am subtracting by, is larger than my first number. 

ex.       4

   -       9

400

Solve the following problem using the bar model and write an equation.

A car can hold 80 pounds of dog food. A truck can hold 10 times the amount of dog food than the car. How many pounds of dog food can a truck hold. 

_80_

_80_ _80_ _80_ _80_ _80_ _80_ _80_ _80_ _80_ 80_

 80 x 10 = 800 pounds


A truck can hold 800 pounds of dog food.

400

In fourth grade, we have learned: 

-Adding/Subtracting three digit up to six digit whole numbers using various strategies. 

-Place Value

-Standard Algorithm

-Multiplicative Comparisions

-Regrouping

True

400

8 x 7 = ?

8 x 7 = 56

400

Think of a six-digit number and write it in standard form and word form.

Teacher check.

500

Solve to find the difference.



4177 - 3,523 = ?

  

                                                                   

               654


500

Write a Multiplicative Comparision story to show an answer of 56.

Teacher Check.

500

Round the following number to the nearest 1,000.


768,582

769,000

500

12 x 11 = ?

12 x 11 = 132

500

I am a number that...

Has a sum of 2+7 in the ones place

Has a digit larger than 8 in the ten thousands place.

Has a digit that is even and less than 5 but greater than 2 in the hundreds place.

Has a 8 in the thousands place. 

Has a digit that is even and less than 5 but not 4 or 0.

98,429