8TH GRADE MATH MIDTERM

Evaluate: u + xy ( u=18, x=10, y=8 )

• 188

• 36

• 98

• 224

Evaluate: (ab)^2 ; ( a=4, b=3 )

• 36

• 24

• 81

• 144

3[(15-3)^2/4]

• 108

• 36

• 18

• 9

4(20+12)/(4-3)

• 29

• 80

• 128

• 92

-1/8 -2/7

• 1/5

• -23/56

• 23/56

• -1/8

|18-6|

• 13

• -13

• 12

• -12

(-2)^5

• -32

• 16

• -10

• 32

[(-9)(-8)]/(-2)

• 36

• -72

• 72

• -36

A rational number is _ a real number

• always

• sometimes

• never

The opposite of a negative number is _ negative

• always

• sometimes

• never