Math October 18th

Open Ended

Good morning, now that you have practiced using words to describe operations(Addition, Subtraction, Multiplication and Division). Can you list 1 word for each below.

Addition

Subtraction

Multiplication

Division

Multiple Choice

The total amount (add)
5 + 2 = 10

• Difference
• Sum
• Product 
• Quotient

Multiple Choice

The answer to a multiplication problem
5 x 2 = 10

• Product
• Quotient
• Sum
• Difference

Multiple Choice

Evaluate means: 

• Solve
• Expand 
• Guess
• Laugh

Multiple Choice

Total

• Add (+)
• Subtract (-) 
• Multiply (x)
• Divide (÷)

Multiple Choice

Difference

• Add (+) 
• Subtract (-) 
• Multiply (x)
• Divide (÷)

Multiple Choice

What operation should be used:

"Darren has 21 pencils and seven bags. If he puts the same number of pencils in each bag, how many pencils will be in each bag?"

• Subtraction

• Addition

• Multiplication

• Division

Multiple Choice

What operation is the word "half" associated with?

• Addition
• Subtraction
• Multiplication
• Division

Multiple Choice

What operation is the word "quotient" associated with?

• Addition
• Subtraction
• Multiplication
• Division

Lets Look at some Examples

Write five plus three times itself as an expression.

Step 1. What are the key words?

Step 2. What are the terms/numbers?

Step 3. Write out the expression.

So we get 5 + 3²

The sum of five and four.

Step 1. What are the key words?
Step 2. What are the numbers/variables?
Step 3. Write out the expression.

5+4

Ten less than a number

What are the key words?

Step 1. What are the key words?

Step 2. What are the numbers/variables?

Step 3. Write out the expression

n - 10

There are many ways to write a multiplication and division expression.

Multiple Choice

Fourteen subtracted from a number written as an expression is

• 14-x

• x-14

• x/14

• 14+x

Multiple Choice

twenty times a number

• 20 + x

• x - 20

• 20x

• x/20

Multiple Choice

Which phrase represents "the sum of 11 and a number".

• 11-x

• 11+x

• -11+1

• -11-x

Multiple Choice

w increased by 5

• w - 5
• 5w
• w + 5
• w / 5

Multiple Choice

Choose the right expression for "the difference of three and a number".

• 3x

• 3-x

• x-3

• $$\frac{3}{x}$$

Multiple Choice

the quotient of seven and a number

• 7/x

• x/7

• x - 7

• 7 - x

Multiple Choice

the quotient of a number and twelve

• x + 12

• x - 12

• 12/x

• x/12

Multiple Choice

ten divided by a number

• x + 10

• 10 - x

• 10/x

• x/10