Additive Inverse and Addition Study Guide

What problem does the number line show?

The outside air temperature was -17 degrees Celsius before sunrise. After the sun rose,

the temperature rose by the additive inverse. Which equation would represent this

situation?

For which situation do the quantities combine to make 0?

• A banker deposits $90 into his account before he withdraws $40.

• A banker deposits $60 into his account and then he deposits $60 more.

• A banker withdraws $40 from his account and then he withdraws $40 more.

• A banker deposits $80 into his account before he withdraws $80.

Mya is training for a marathon. She runs 4.5 miles directly east. She wants to end her

run in the same location she started. What should she do?

• Run 2 miles west and then 2.5 miles south

• Run 4.5 miles west

• Run 2.25 miles west and then 2.25 miles east

• Run 4.5 miles north

Which equation correctly represents the sum of -h and h using the additive inverse

property?

Which situation describes an overall change of 0?

• Kylie climbs down 8 rungs on a ladder, then up 3, then up 5 more

• Kylie climbs up 6 rungs, then down 3, then up 2

• Kylie climbs down 8 rungs on a ladder, then up 3, then up 4 more

• Kylie climbs up 6 rungs, then down 1 rung, then down 2 more

Which of the following is a way to find the value of 3 + (-5)

• Find 3 on a number line and then move 5 units to the right.

• Find 3 on a number line and then move 5 units to the left.

• Find the absolute value of the sum of 3 and -5.

• Subtract 3 from -5 and find the absolute value of the difference.

• 8

• -8

• 2

• -2

Which of the following is a way to find the value of -2 + (-7)

• Find the absolute value of the sum of -2 and -7.

• Subtract -2 from -7 and find the absolute value of the difference.

• Find -2 on a number line and then move 7 units to the right.

• Find -2 on a number line and then move 7 units to the left.

• 9

• -9

• 5

• -5