HESI A2 MATHS 2 LATEST VERSIONS REAL EXAM 300+
QUESTIONS AND ANSWERS
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
to change decimals to fractions - ANSWER: place the decimal portion of the number
(numerator) over the respective place value (denominator) then reduce
ratios - ANSWER: used to show relationship between 2 quantities
rates - ANSWER: used to compare 2 quantities w/ different units
QUESTIONS AND ANSWERS
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
to change decimals to fractions - ANSWER: place the decimal portion of the number
(numerator) over the respective place value (denominator) then reduce
ratios - ANSWER: used to show relationship between 2 quantities
rates - ANSWER: used to compare 2 quantities w/ different units
