Add and Subtract Numbers

How do you find the mean?

• Put the numbers in order from least to greatest and find middle number

• Add the numbers and divide by the number of numbers

• Put numbers in order from least to greatest, then find the most seen number

• Subtract the largest number from the smallest number.

41 - 15 + (-29) =

• 85

• 3

• - 3

• 0

Evaluate x + y when x = -1/2 and y = 1/3

• - 1/6

• 1/6

• - 2/5

• 0

9.01 - (- 4.09)

• 13.10

• 4.82

• -13.00

• 5.02

See the picture...

• 1 1/4

• -2

• 1 2/6

• 2

0.6 + 0.15

• 0.21

• -2.1

• 0.75

• 0.45

-8 3/4 + 1 3/10 = 

• -7 9/20

• 7 9/20

• -7 3/4

• 7 3/4

6  3/4 -  -2  4/5=

• 9  11/20

• -9  11/20

• 4  11/20

• -4  11/20

What is the value of the following expression?

• -72

• -8 and 2/3

• 40 and 1/3

• 72

Following the integer rules, would you add or subtract the fractions?

• add, the answer would be positive

• add, the answer would be negative

• subtract, the answer will be positive

• subtract the answer will be negative