Writing and Solving Expressions

Writing and Solving Expressions

What are expressions?

Examples

• 68 decreased by the product of 5 and 9

•  $68\ -\left(5\times9\right)$  

• 6 subtracted from the sum of 17 and 28.

•  $\left(17\ +\ 28\right)-6$  

• 6 times the quotient of 32 and 4.

•  $6\times\left(32\div4\right)$  

How do we solve expressions?

Examples

•  $68\ -\left(5\times9\right)=$  

•  $68-45=$  

•  $23$  
  

Examples

•  $\left(17\ +\ 28\right)-6=$  

•  $45-6=$  

•  $39$  

Examples

•  $6\times\left(32\div4\right)=$  

•  $6\times8=$  

•  $48$  

TIME TO PRACTICE!

Multiple Choice

Which expression matches the statement, “the sum of 8 and 9 subtracted from 30?”

• 8 + 30 – 9

• 30 – 8 + 9

• 30 – (8 + 9)

• (8 + 9) – 30

Multiple Choice

3 times the sum of 13 and 25

• $3\times13+25$

• $3\times\left(13+25\right)$
  

• $3\times13-25$
  

• $3\times\left(13-25\right)$
  

Multiple Choice

The quotient of 72 and 12 plus 5

•  $72\times\left(12+5\right)$ 

•  $72\div\left(12+5\right)$ 
  

•  $72\times12+5$ 
  

•  $72\div12+5$ 
  

Multiple Choice

Which statement matches the expression $4\times5-16$  ?

• 16 less than the product of 4 and 5

• 16 subtracted by the product of 4 and 5

• The difference of 16 and 5 multiplied by 4

• 16 less than the quotient of 4 and 5

Multiple Choice

 $\left(7+6\right)\times3$  

• The sum of 7 and 6, doubled

• 7 plus 6 times 3

• The sum of 7 and 6, tripled

• The difference of 7 and 6 times 3

Multiple Choice

 $28-\left(2+9\right)$  

• The difference of 2 and 9 plus 28

• The sum of 2 and 9 minus 28

• The difference of 2 and 9 added to 28

• The sum of 2 and 9 subtracted from 28

Fill in the Blank

Solve. Type your answer in the box.

 $8+70\div10$  

Fill in the Blank

Solve. Type your answer in the box.

 $4\times7-36\div4$  

Fill in the Blank

Solve. Type your answer in the box.

 $6\times\left(32-20\right)$  

Fill in the Blank

Solve. Type your answer in the box.

 $(31-11)\div5+2$