Quick calculations
5x 1000 + 2 x 10 +4=
5024
What is the range ( 35, 58, 79, 81) ?
81-35=46
Express 3.1 as a common fraction
31/10
What is the degree measure of the angle formed by the hour and the minute hands of an analog clock at 3:00 PM?
Right angle, 90 degrees
There are 30 students in Kevin's math class. 18 own dogs, 9 own cats, and 7 own both dogs and cats. How many students own neither a dog nor a cat?
10 students
30 -18 -9 +7=10
9 x 2 x 30=
540
A car travels 210 miles in 4 hours. What is the average speed, in miles per hour? Express your answer as a decimal to the nearest tenth.
The average speed of the car is = 52.5 miles per hour.
210/4
8.1 : 0.9=
9
Two angles of triangle measure 130 and 570. The 3rd angle measures __0?
1100
Cynthia begins at the bad ladder. She climbs 6 rungs up, then climbs 2 rungs down. Finally, she climbs 7 rungs up to the top of the ladder. How many rungs does the ladder has?
6-2+7 =11
25x19=
475
The average of 3,10 and 14 is...
9
12.4 + 6.81=
19.21
The perimeter of a square is 12 feet. Its area is...square feet?
A=9
A class has 9 boys and 12 girls. In how many ways can the class representatives ( 2 boys and 2 girls) be chosen from the class?
2376
3x 4 x 5 x 6 : 20=
18
Find the average 4, 7, 8, 11, 15, 21
11
Mia stopped for gas when her tank was
1/4
full. After putting in $ 18 worth of gas,her tank was
1/2
full. If gas costs $3 per gallon, then how many gallons does her tank hold when it full?
24
She bought
18/3
= 6 gallons of gas, which filled
1/2 -1/4 = 1/4
of her tank. Thus, her tank holds 6x4= 24 gallons when full.
What is the radius of a circle with diameter 12?
6
12/2=
Evaluate 4! + 3! + 2! + 1!=
4! + 3! + 2! + 1!= 24+ 6 + 2 + 1= 33
If a= 6 , then a+a2=
42
Alex can run 630 feet in 50 seconds. At the same range , how many yards can he run in 1 minute?
252
Since 60 sec= 1min , he runs
60/50
x 630=756 feet, which equals to
756/3
=252 yards
72 :
1 1/8 =
64
In how many ways can the letters in the word SMART can be arranged?
120 ways
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