PSB Math Questions & Answers
Find what the % is
25% of 80=? - ✔✔.25x80= 20
Find the %
50% of 80=? - ✔✔.50x80= 40
90 people work at your office. 85% work on computers. How many people work on computers? -
✔✔85% of 9
...
PSB Math Questions & Answers
Find what the % is
25% of 80=? - ✔✔.25x80= 20
Find the %
50% of 80=? - ✔✔.50x80= 40
90 people work at your office. 85% work on computers. How many people work on computers? -
✔✔85% of 90
.85x90= 76.5
Find the total
40% of ?= 12 - ✔✔You divide .40 and .40 they cancel out and you left with 12 divided by .40
which gives you 30
four students are sharing an apartment. Each pays 25% of the rent. If each pays $200 for the rent,
how much is the total rent for each month? - ✔✔You divide .25 and .25, that cancels out.
Now you divide 200 divided by .25 and that gives you 800.
Jill has a 25% off coupon for a computer. The coupon saved her $35. How much would the
computer be without the coupon? - ✔✔.25 and .25 cancel out.
35 divided by .25= $140
Finding the %
% of 32= 16 - ✔✔Divide 32 on both sides. 32 divided by 32 is 0.
16 divided by 32= .50
So 50% of 32=16
30 out of 50 stores in your neighborhood sells pickles. What percentage of the stores sells
pickles? - ✔✔Write out the problem. % of 30=50.
30 divided by 30=0
30 divided by 50= 60
60% sells pickles.
Out of 200 old people, 80 cannot send a text message. What percent of old people cannot send a
text? - ✔✔?% of 80= 200
80 divided by 80= 0
80 divided by 200= 40%
Your team has won 9 out of 45 basketball games. What percent did your team win? - ✔✔9
divided by 9= 0
9 divided by 45= 20%
Anything to power of 0 =? - ✔✔1
Anything to the power of -1=? - ✔✔1
Anything to the power of an odd number power=? - ✔✔-1
9= h how do you solve?
9 - ✔✔multiply 9x9
How to find the average of a number - ✔✔the average is the sum of the numbers divided by the
number of numbers added.
10,14,17, and 23.
10+14+17+23= 64 divided by 4= 16
The square of a number - ✔✔The square of a number is the product obtained when a number is
multiplied by itself
4 to the power of ^2.
4x4=16
The square root of a number - ✔✔is the number that yields the given number when multiplied by
itself. The square root of 16=4, since 4x4=16
Proper fraction - ✔✔4
5
Improper fraction - ✔✔7
3
Reducing fractions - ✔✔Fraction must be reduced to its lowest terms. This is done by finding the
greatest common factor (GCF) for both the numerator and denominator and then dividing both
the numerator and denominator by that value
Multiplying fractions - ✔✔a/b x c/d = ac/bd then simplify by reducing it to the lowest terms or
changing it to a mixed number
6x3= 18
9 8 72
If you have 1 over 1 or 10 over 10 the value is always - ✔✔1
Zero fraction is always ? than a proper fraction - ✔✔less
Proper is ? than whole fraction - ✔✔less
Whole is ? than improper - ✔✔less
Find the interest on $25,800 for 144 days at 6% per annum. Base your calculations on a 360-day
year. - ✔✔25,800(144/360) (0.6)
enter calculations without rounding
If you paid $90 to a loan company for the use of 1571 for 58 days what annual rate of interest did
they charge, assuming 360 day year. - ✔✔90= 1571 x rate x 58/360
90= 253.10 x rate
90 divided by 253.10= rate
rate = 35.6%
Arthur can shovel snow from a sidewalk in 60 min and jack can do it in 30 min. How many min
will it take them to do the job together? - ✔✔30min.
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