Integers Introduction — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. Compare with <, >, or =: -5 < -2
Numbers farther left on a number line are always smaller in value.
2. Compare with <, >, or =: -3 > -7
When comparing negatives, the one closer to zero has the greater value.
3. Order from least to greatest: 4, -1, -6, 2. The least value is -6.
The most negative integer is always the smallest value in any set.
4. Order from least to greatest: -8, 0, 3, -2. The greatest value is 3.
Any positive integer is larger than zero and any negative integer.
5. A debt of forty-five dollars is written as the integer -45.
Owing money decreases value, so it is shown using a negative integer.
6. A football team gains ten yards on a play. The integer is 10.
Forward gains are recorded with positive integers because value increases.
7. An elevation of two hundred feet below sea level equals the integer -200.
Elevations below sea level are below zero, so they require a negative sign.
8. Compare with <, >, or =: 0 > -9
Zero sits above every negative integer on the number line.
9. Order -4, -1, -10, -2 from least to greatest. The least value is -10.
The integer farthest from zero on the negative side is always smallest.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
Owe $25 to a friend
→ -25
100
Climb 100 feet up a hill
→ 100
0
Submarine dives 50 ft below sea level
→ -50
-25
Score zero points on a quiz
→ 0
-50
Real-world losses or below-zero values are negative; gains and ups are positive integers.