Zero and Distance

What is the additive inverse of -9

• 9

• 0

• -9

Which scenario will result in a total change of zero?

• Brenda gave away 4 apples to her mom and gave away 5 apples to her dad.

• Jason road his bike 2 miles north, then turned around and biked 2 miles south.

• Xavier road the elevator up 3 floors, then rode the elevator up 3 floors.

• The temperature outside was -50 degrees and fell 50 degrees.

Which situation could be solved using the equation -6 + 6 = 0?

• Jen has $6 in her piggy bank. She adds $6 more to her piggy bank.

• Peter ran 6 blocks toward school. Then he runs the remaining 6 blocks

• A hiker starts 6 feet below sea level. Then decreases by 6 feet.

• Anna bought a toy for $6 and then returned the toy and got $6 back.

Darious has a bank account with $50. Which situation, when combined with that will result in a balance of zero?

• Darious depositing $50.

• Darious withdrawing $50.

• Darious withdrawing $10.

• Darious not depositing or withdrawing any money.

At noon, the temperature was -12^οF. At 8pm, the temperature was 45^οF, what is the total change in temperature?

• 57^ο

• 33^ο

• -57^ο

• -33^ο

A seed was planted 6ft underground. After 10 years, the plant reached a height of 9ft. What was the total change in height of the plant?

• 3 feet

• -3 feet

• 15 feet

• 84 feet

The initial temperature of a pound of beef was 35^οF. After 12 hours in the freezer, the temperature of the pound of beef decreased to -15^οF. What is the total change in temperature, in degrees Fahrenheit, for the pound of beef?