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Adding Rational Numbers
Subtracting Rational Numbers
Multiplying Rational Numbers
Dividing Rational Numbers
Word Problems
100
12+-15
-3
100
-2.25 - 5.5
-7.75
100
-2(-3.5)=
7
100
-323.75/5
-64.75
100
A girl is snorkeling 1 meter below sea level and then dives down another 0.5 meter. How far below sea level is the girl?
1.5 meters
200
-2.5+-1.5
-4
200
0.25 - (-1.50)
1.75
200
4(-1/2)
-2
200
(7/10)/(-1/5)
-7/2
200
Renee hiked for 4 3/4 miles. After resting, Renee hiked back along the same route for 3 1/4 miles. How many more miles does Renee need to hike to return to the place where she started?
1 1/2 miles
300
-(5.25)+(3.75+4.50)
3 or 3.00
300
-78.9 - (-55.2) - (29.3)=
-53
300
(-2/3)(-1/2)(-3/5)
-1/5
300
(32/-2)/(-16/4)
4
300
The basketball coach made up a game to play where each player takes 10 shots at the basket. For every basket made, the player gains 10 points. For every basket missed, the player loses 15 points. The player with the highest score sank 7 baskets and missed 3. What was the highest score?
The highest score was 25 points
400
-3 +(1 1/2)+(2 1/2)=
1
400
(24 3/8) - (-54 1/8) - (1/4)=
78 3/4
400
(-4/7)(-3/5)(-7/3)
-4/5
400
(251/4)/(-3/8)
167 1/3
400
Sandy has $200 in her bank account. If she writes 6 checks for exactly $19.98, what will her account balance be after the checks are cashed?
200-119.88= 80.12 ; $80.12
500
A contestant on a game show has 30 points. She answers a question correctly to win 15 points. Then she answers a question incorrectly and loses 25 points. What is the contestant's final score?
20 points
500
The temperatures for five days in Kaktovik, Alaska, are given below -19.6 F, -22.5 F, -20.9 F, -19.5 F, -22.4 F Temperatures for the following week are expected to be twelve degrees lower every day. What are the highest and lowest temperatures for the corresponding 5 days next week
Lowest -34.5 F Highest -31.5 F
500
Greg sets his watch for the correct time on Wednesday. Exactly one week later, he finds that his watch has lost 3 1/4 minutes. If his watch continues to lose time at the same rate, what will be the overall change in time after 8 weeks?
-26 which is 26 minutes behind
500
Beginning in 1996, a glacier lost an average of 3.7 meters of thickness each year. Find the total change in its thickness by the end of 2012
-62.9 meters; the glacier has lost 62.9m of thickness
500
A 30-minute TV program consists of three commercials, each 2 1/2 minutes long, and four equal-length entertainment segments. How long is each entertainment segment?
5 5/8 minutes