Adding & Subtracting Rational Numbers
What is (-3) + 5?
2
What is (-6)(4)?
-24
Which is greater: -3 or -5?
-3
What is | -5 | ?
5
Jamie spends $3.50 on a snack and then finds $1.75. What is her total change in money?
$1.75
Solve:
-7.5 + 3.2
-4.3
Find the product:
(-3/5) × (10/3)
-2
Place in order from least to greatest:
-0.2, 1/4, -1/3, 0
-1/3, -0.2, 0, 1/4
If x = -8, what is | x + 3 |? ?
5
A bank account has a balance of $50. A withdrawal of $75 is made. What is the new balance?
-$25
Evaluate:
1/2 - 3/4
-1/4
Evaluate: (-8) ÷ 2
-4
Convert -7/8 to a decimal.
-0.875
A football team loses 12 yards on a play, then gains 15 yards. How many yards did they gain in total?
3 yards
A stock price starts at -$12.50 and rises $8.75. What is the final price?
-$3.75
A submarine is 60 feet below sea level. It rises 35 feet and then dives 18 feet. What is its final position?
-43 feet
If the temperature drops by 1.5 degrees per hour for 4 hours, what is the total temperature change?
-6 degrees
Which number is closer to zero:
-1.2 or 3/4?
3/4
A diver is at -25 feet. A fisherman is at 15 feet. What is the distance between them?
40 feet
A glacier is 325 feet below sea level. It melts and loses 50 feet. What is its new elevation?
-375 feet
Write an equivalent expression for
(-3) – (-7) + (-5)
and solve.
-1
A diver descends at a rate of -2.5 meters per second for 8 seconds. How far does the diver go?
-20 meters
Write an inequality to compare -4.6 and -4 5/8
-4.6 > -4 5/8
Explain why absolute value is always positive.
Absolute value represents distance from zero, which cannot be negative.
A submarine is diving 5.2 feet per second. After 14 seconds, what is its depth?
-72.8 feet