HESI A2 Math Questions and Answers 100% Pass
/. whole number - Answer-set of numbers that contains no fractions or decimals
(0,1,2,3,4,189, 293)
/.Intergers - Answer-whole numbers and their opposites (negatives)
(-1, -2, -3, -4, -5, 0, 1, 2, 3, 4, 5
/.prime number - Answer-number that is only evenly divisible by 1 & itself
- no remainder or decimal
/.composite number - Answer-positive integer (whole number) formed by multiplying 2
smaller integers together
- all divisible by 2
- can be evenly divided by numbers other than 1 or itself
/.decimals - Answer-what follows decimal is a value less than 1 & added to the integer
number preceding the decimal
- division between the whole portion & the fraction (or decimal) portion of a number
- EX: 3.15 3=whole; .15=decimal/fraction
/.real numbers - Answer-rational and irrational numbers
/.rational numbers - Answer-any number that can be expressed as a fraction, w/ a non-
zero denominator
- all integers are considered rational numbers
- every rational number has a decimal that terminates/repeats
/.irrational numbers - Answer-numbers that cannot be expressed as a finite decimal
-Pi is finite bc its decimal portion is unending
/.communitive property - Answer-a+b=b+a
/.Associative Property - Answer-grouping of numbers doesn't matter in an addition
problem
/.decimal chart - Answer-place value of decimals
/.In dividing by 10, you move the decimal 1 position to the - Answer-left, making a
smaller # than before
, /.In multiplying by 10, move the decimal 1 position to the - Answer-right, making a larger
# than before
/.kilo - Answer-1000 units
/.hecto - Answer-100 units
/.deca - Answer-10 units
/.base unit - Answer-zero
/.deci - Answer-0.1 units
/.centi - Answer-0.01 units
/.milli - Answer-0.001 units
/.addition & subtraction of decimals - Answer-line up decimal
/.multiplication of decimal - Answer-pretend decimals are not there, then count how
many decimals are in original problem; use total to place decimal in same number of
spaces over
/.proper fraction - Answer-the numerator is less than the denominator
/.improper fraction - Answer-the numerator is larger than the denominator
/.mixed numbers - Answer-combine whole number with a proper fraction
/.when reducing or simplifying fractions - Answer-divide the numerator & denominator
by low numbers, like 2, 3, or 5 until arriving at a simple fraction
- Greatest common factor
/.to multiply 2 fractions - Answer-multiply the numerators & the denominators
"straight across"
/.dividing fractions - Answer-flip the second fraction and multiply
/.least common denominator - Answer-The least common multiple of the denominators
of two or more fractions.
/.to change a fraction to a decimal - Answer-divide the denominator into the numerator
until there are no remainders
/. whole number - Answer-set of numbers that contains no fractions or decimals
(0,1,2,3,4,189, 293)
/.Intergers - Answer-whole numbers and their opposites (negatives)
(-1, -2, -3, -4, -5, 0, 1, 2, 3, 4, 5
/.prime number - Answer-number that is only evenly divisible by 1 & itself
- no remainder or decimal
/.composite number - Answer-positive integer (whole number) formed by multiplying 2
smaller integers together
- all divisible by 2
- can be evenly divided by numbers other than 1 or itself
/.decimals - Answer-what follows decimal is a value less than 1 & added to the integer
number preceding the decimal
- division between the whole portion & the fraction (or decimal) portion of a number
- EX: 3.15 3=whole; .15=decimal/fraction
/.real numbers - Answer-rational and irrational numbers
/.rational numbers - Answer-any number that can be expressed as a fraction, w/ a non-
zero denominator
- all integers are considered rational numbers
- every rational number has a decimal that terminates/repeats
/.irrational numbers - Answer-numbers that cannot be expressed as a finite decimal
-Pi is finite bc its decimal portion is unending
/.communitive property - Answer-a+b=b+a
/.Associative Property - Answer-grouping of numbers doesn't matter in an addition
problem
/.decimal chart - Answer-place value of decimals
/.In dividing by 10, you move the decimal 1 position to the - Answer-left, making a
smaller # than before
, /.In multiplying by 10, move the decimal 1 position to the - Answer-right, making a larger
# than before
/.kilo - Answer-1000 units
/.hecto - Answer-100 units
/.deca - Answer-10 units
/.base unit - Answer-zero
/.deci - Answer-0.1 units
/.centi - Answer-0.01 units
/.milli - Answer-0.001 units
/.addition & subtraction of decimals - Answer-line up decimal
/.multiplication of decimal - Answer-pretend decimals are not there, then count how
many decimals are in original problem; use total to place decimal in same number of
spaces over
/.proper fraction - Answer-the numerator is less than the denominator
/.improper fraction - Answer-the numerator is larger than the denominator
/.mixed numbers - Answer-combine whole number with a proper fraction
/.when reducing or simplifying fractions - Answer-divide the numerator & denominator
by low numbers, like 2, 3, or 5 until arriving at a simple fraction
- Greatest common factor
/.to multiply 2 fractions - Answer-multiply the numerators & the denominators
"straight across"
/.dividing fractions - Answer-flip the second fraction and multiply
/.least common denominator - Answer-The least common multiple of the denominators
of two or more fractions.
/.to change a fraction to a decimal - Answer-divide the denominator into the numerator
until there are no remainders
