Math

-7(10)=

• 70
• 700
• -70
• -700

-20/5=

• -4
• 4
• -100
• 100

-3(-4)

• -12
• 7 
• -7
• 12

-8(0)=

• -8
• 8
• 0
• -80

(-25) ÷ (-5)

• 5
• -5
• -20
• -30

-5 x -8

• -40
• -13
• -45
• 40

Is the product
–8 • (–3) positive or negative?

• negative
• positive
• both
• neither

Every Friday for 8 weeks Kylan withdrew $35 from his savings account.  How much did he withdraw in all?

• -280
• 280
• 27
• -27

33. Kim was walking down a rocky path.  For 4 minutes, the elevation dropped uniformly.  Altogether it dropped 8 feet.  What was the change in elevation per minute for the 4 minutes?

• -8 ÷ 4 = -2 feet per minute
• 8 ÷ 4 = 2 feet per minute
• 8 - 4 = 4 feet per minute
• 8 + 4 = 12 feet per minute

34.  As a front passed, the temperature changed steadily over 6 hours.  Altogether it change -18 degrees.  What was the change in temperature per hour for the 6 hours?

• -18 ÷ 6 = -3 degrees
• 18 ÷ 6 = 3 degrees
• 18 + 6 = 24 degrees
• 18 - 6 = 12 degrees