Writing and Evaluating Expressions:Classwork

5.OA.15.OA.2

Directions

1) Click “slide show button” to begin work.

2) Record your work and answers on the recording sheet provided.

3) Click the blue box to check your answer. Mark it “Correct” or “Incorrect”.

4) Use the buttons at the bottom of the screen to

move to the next question!

Problem 1:

Write a numerical expression to represent:

Double 5 then add 26

(2 x 5) + 26

Problem 2:

Write a numerical expression to represent

3 times the difference between 29 and 18

3x(29-18) or 3(29-18)

Problem 3

Write a numerical expression to represent

12 more than the quotient of 81 and 9

12 + (81 9)

Problem 4

Write a numerical expression to represent

Twice as much as the sum of 2.5 and 4

2(2.5+4) or 2 x (2.5 x 4)

Problem 5

Write a numerical expression to represent

2 less than the sum of and

() – 2

Problem 6

Write a numerical expression to represent

5 less than the product of 7 and 8

(7 x 8) -5

Problem 7

Write a numerical expression to represent

Half the difference between

() 2

Problem 8

Write a numerical expression to represent

26 less the quotient of 22 and 11

26 – (22 ÷ 11)

Problem 9

Write a numerical expression to represent

15 minus the sum of 6 plus 7

15 – (6 + 7)

Problem 10

Harper wrote the expression 15(n) to represent “ the quotient of 15 and n”.

Do you agree or disagree with Harper? Justify your thinking.

Summarizer:Match the following. On your recording sheet, write the number with the corresponding letter next to it. Then turn your paper into Miss Caponigro.

1) Subtract 7 from 9, then multiply by 8 A. 9 x (8 - 7)

2) Multiply 8 times 9, then add 7 B. x 8

3) Subtract 7 from 8, then multiply by 9 C. 7 + 8 x 9

4) The product of 8 and 9, minus 7 D. 8 x 9 - 7

5) 8 times the quotient of 9 and 7 E. 8 x (9-7)