Mental Math

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Can you name the answer to the following mental math questions?

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Answer
2010 + 2009 =                                    
2009 × 11 =                                    
9002 - 2010 =
2010 ÷ 25 =(decimal)
3/5 ÷ 8/15 =                                    
4 × (2+2/3) = (mixed number)
16 % =(proper fraction)
3 + (4 × 5 - 6) ÷ 7 =                                    
3/8 =(decimal)
*** 2009 + 2010 + 2910 =(round to nearest hundred)
12^2 =                                    
12^3 =                                    
24 is what % of 60?%
32 × 23 =                         
1 + 3 + 5 + … + 23 =                          
Which is larger, 11/13 or 13/16 ?                    
2010 ÷ 9 has a remainder of
MCDLXIV = (Arabic Number)
1/4 ton is equivalent toounces
*** 235 × 146 =(round to nearest hundred)
.323232… =(proper fraction)
Which of the following is both a happy and a perfect number: 7, 28, or 42?
30603 ÷ 101 =                    
How many positive integral divisors does 64 have?
If f(x) = x^2 - 10x + 25 then f(37) is
If 4x + 3 = 2 then 2x - 2 =
86 base ten is equivalent tobase 5
Answer
The sum of the roots of 2x^2 + 3x = 5 is
The area of a square is 12+1/4 square inches. The perimeter of this square isinches
*** √(488) × 221 =(round to nearest 50)
(15 + 16 × 17) ÷ 7 has a remainder of
The multiplicative inverse of -1.25 is
|-1 -1| + |-2 + 3| - |5 - 8| =
4 × 4! - 12 × 3! =
(2+3/5) × (2+2/5) = (mixed number)
The set {L, U, C, A, S} hasproper subsets
4^2 + 3^3 + 2^4 =
√(243) - √(75) = √(x). Find x.
If set A has 6 elements, set B has 5 elements, and A∩B has 4 elements, then A∪B haselements.
*** 224488 ÷ 111 =(round to nearest five)
If P is 20% of Q and Q is 25% of R, then P is what percent of R?%
113 × 212 =
If x + y = 2 and xy = 2 then x^3 + y^3 =
3/4 - 10/13 =
…, -(1+1/3), -2/3, x, y, … is an arithmetic sequence. Find the value of y.
7/40 = % (decimal)
Find the harmonic mean of 2 and 5.
The least integer x such that 3 - 5x < 2 is
95 degrees F = degrees C
*** 125 × 37.5 ÷ 5/8 =(round to nearest fifty)
The probability of drawing a Queen or King from a standard 52 card deck is
nPr(5,3) + nPr(5,2) =                                    
45 degrees = pi/k radians. Find k.
(2 + 7i) (2 - 7i) = a + bi. Find a + b.
Answer
sin(pi/3) × cos(pi/6) =
The vertex of the parabola y = x^2 - 6x + 3 is (h, k). Find h.
The eleventh term of 6, 11, 16, 21, … is
The largest number of regions created by five intersecting lines is
1 - 4 + 9 - 16 + 25 - 36 + … - 64 =
*** e^e × pi^pi =(round to nearest integer)
44 base 8 × 4 base 8 =base 8
How much time has passed from 3:45 pm to 11:15 pm the same day?hours
The slope of the line containing the points (-1, -2) and (3, 4) is
The simplified coefficient of the xy^2 term in the expansion of (2x + 3y)^3 is
The greatest integer function g(x) = [2x - 3] has a value offor g(pi)
If log_x(8) + log_x(8) = 3 then x =
√(2809) =
(67 base 9 + 84 base 9) ÷ 8 has a remainder of
If A is 125% of B and B is 120% of C then A is% greater than C
*** The area of 20x^2 + 45y^2 = 900 is(round to nearest integer)
The sum of the first 9 terms of the Fibonacci characteristic sequence 1, 4, 5, 9, 14, 23, … is
If f(x) = 3x - 2 then f_inverse(-1) =
If det([[-1,-2],[3,x]]) = 5, then x =
limit of (x^2 - 3x)/(x-3) as x approaches 3 =
The graph of f(x) = 2^(x-2) has a horizontal asymptote at y=
If f(x) = (3x - 1)/(2x + 1) then f ' (1) =
1(1!) + 2(2!) + 3(3!) + 4(4!) =
Integral of x^2 dx from 2 to 3 =
Given 5966 ÷ 38 = 157, Find 5966 ÷ (9+1/2).
*** 3210 miles/hour =feet/second (round to nearest ten)

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Created Jul 21, 2010SourceReportNominate