Decimals, Fractions, and Percentages
What is 30% as a decimal?
0.3
What is 3-(-4)?
7
You roll two six sided dice, what is the probability that they both show “1”?
1/36
Find the value of 1/2-1/3-1/4 as a fraction.
-1/12
What is the value of 0.375(0.25)?
0.09375
What is 7/20 of 35 as a percentage?
1225%
What is -5+(-7)?
-12
You toss a coin in the air, then roll a six sided die. What is the probability of getting a heads with a prime number? Express your answer as a fractions in lowest terms.
1/4
Find the value of 20/100+125/1000 as a fraction.
3/200
What is the value of 10.01/5.005?
2
What is 200% of 20% of 2?
0.8
What is 5-(8-4)+(-3+7)?
5
Xiaoming tossed a coin 5 times and got 1 head. What is the probability that he got exactly 4 heads? Express your answer as a fraction in lowest terms.
5/31
Find the value of 1/2-1/3+1/5
11/30
What is the value of 25.5-12.435678
13.064322
What percentage of numbers from 1 to 30 have the digits 1 and 8?
20%
n(-9)(144)-(-225)=-3663
What is the value of n?
3
There are 30 cards each one labeled a number from 1 to 30 in a basket all mixed up. What is the probability that you pick a prime number with the digit one?
4/30
Find the value of 1/2*2/3*3/4*...*98/99*99/100.
1/100
What is the addictive inverse of 99.1 added to 2.32?
-93.81
If you reduce the volume of a cube by 27.1%, by what percent do you reduce the value of its side?
10%
Find the value of (-3)2/14-2 , which equivalent to (-3)(-3)/(1/14*1/14)
1764
Xiaoming, Ade, and Doudou repeatedly take turns tossing a die. Xiaoming begins, Ade always follows Xiaoming, Doudou always follows Ade, and Xiaoming always follows Doudou. Find the probability that Doudou will be the first one to toss a six.
25/91
Find the value of (2/10*10/2)2 , which is the same as (2/10*10/2)(2/10*10/2).
1
The number -0.1 is closest in value to
A) 0.1 B) (0.1)(0.1) C) (0.1)(0.1)(0.1) D) 2 x 0.1
c