MCAT - Math Review questions and answers

MCAT - Math Review questions and answers
Estimating: we should be doing what with every number? - *rounding it*



Decimal for 1/8 - 0.125



Estimating Fractions:



Fractions where the numerator is larger, create a compound fraction. - Ex:



13/5 -> *2 3/5* -> *2.60*



Estimating Fractions:



Huge numbered fractions can be estimated to nearest commonly divisible
number. - Ex:



16/81 -> *16/80* -> 2/10 -> 1/5 -> *0.20*



Estimating Fractions:

,MCAT - Math Review questions and answers
For fractions where the denominator is larger, use the "*high/low method"*. - Ex:

3/7

(3/6 & 3/8)

= "a little less than half..."



Ex: 7/13

(7/12 & 7/14)

= "a little more than half..."



Squares:



11 x 11 - 121



Squares:



12 x 12 - 144



Squares:

, MCAT - Math Review questions and answers
13 x 13 - 169



Squares:



14 x 14 - 196



Squares:



15 x 15 - 225



Estimating Square-Roots:



What's the square-root of 72? - 8x8 = 64

9x9 = 81



*72 is somewhere in between, so it's ~8.5*



Practice: