Signed #'s Target 3 Solve and Interp real world prob w/ Add/Sub

At 6:00 a.m., the temperature was -12 degrees Fahrenheit. Two hours later, the temperature was 10 degrees warmer. What was the temperature at 8:00 a.m.?

• subtraction

• addition

Which of the following represents twice the difference of a number and 7?

• 2x - 7

• 2(x - 7)

• 2x + 7

• 2(x + 7)

Which is an algebraic expression for "six less than k".

• 6 - k

• k - 6

Write an algebraic expression for:
6 minus a number

• n - 6

• 6 - n

• 6n

• 6 + n

Translate the Expression:
The sum of 3 and a number

• 3 + x 

• (2) + 3

• 3(2 + x) 

a number increased by eighteen

• 18n

• n + 18

• 18 - n

Translate:
the difference of 2 and x

• 2 – x

• x – 2

• 2x – 2

• x + 2

Translate this phrase into an algebraic expression.
8 less than a number
Use the variable m to represent the unknown number.

• 8 - m

• m - 8

Translate:

x fewer than 2

• x − 2

• 2 - x

Translate:

d decreased by 8

• 8 -d

• d − 8