What is an integer?
Integers are numbers sometimes called whole or natural numbers
Can integers be negative or positive?
Do integers include fractions?
Is 1 an integer?
Is zero an integer?
Is negative 1 an integer?
positive x positive=
positive x negative=
5 x -6=
negative x negative=
-5 x -5=
4 + (-3)=
-3 + -5=
How many digits are there?
what are the ten digits?
0, 1, 2, 3, 4, 5, 6, 7,8 ,9
What are the digits of 246?
2, 4, 6
In 642, what is the name of each of the digits?
6 is called units or (ones) digit
4 is called the tens digit
2 is called the hundreds digit
Is 27.36 an integer?
Why is 45.93 not an integer?
Because it's a decimal
Name the digits of 27.64?
2 is the tens digit
7 is the units digit
6 is the tenths digit
4 is the hundredths digit
How can you differentiate the difference between digits before and after the decimal point?
digits before the decimal point are called hundreds, tens, units.
Digits after the decimal point is called tenths, hundredths, thousandths.
How many digits are there is 583.4462?
What is a remainder?
when an integer cannot be divided evenly by another integer, the integer left over at the end of the division is called the remainder
Is a remainder an integer?
What are even numbers?
they are integers that can be divided evenly by 2, leaving no remainder.
What are some even numbers?
-6, -4, 0, 4 ,8
Is zero an even number?
How can you tell if 759334 is even?
the last digit is divided evenly by two
What are odd numbers?
numbers that cannot be divided by two evenly?
What are some odd numbers?
-5, -3, -1, 1, 3, 5
How can you tell if an integer is odd?
any integer whose last digit cannot be divided evenly by two
even x even=
odd x odd=
even x odd=
even + even=
odd + odd=
even + odd=
What are integers listed in order of increasing value without any integers missing in between?
Is -3, -2, -1, 0, 1 ,2, 3 a consecutive integer?
Is -1, 0, 2, 3, 4 a consecutive integer? Why?
no because it's missing the number 1
What are some consecutive odd integers?
-3, -1, 1, 3, 5
What are some consecutive even integers?
-2, 0, 2, 4, 6
Is 0 an even integer?
If two numbers are distinct can they be equal?
no because they must have different values
What is a prime number?
a positive number that is divisible only by two numbers: itself and 1
Are prime numbers negative? Why?
No they must be positive
What number is the smallest and only even prime number?
Is 0 or 1 prime?
How can you tell if an integer is divisible by 2?
if the unit digit is divisible by two (that is even)
How can you tell if an integer is divisible by 3?
if the sum of the digits is divisible by three.
How can you tell if an integer is divisible by 4?
if the number formed by its last two digits is divisible by 4.
Is 3,028 divisible by 4?
yes because 28 is divisible by 4
How can you tell if an integer is divisible by 5?
if its final digit is ether 0 or 5.
An integer is divisible by 6 if:
it is divisible both by 2 and 3, factors of 6.
Is 318 divisible by 6?
yes. the last digit is even and divisible by two and 3 + 1+ 8= 12 and is divisible by 3.
what is 0/4=
what is 5/0=
what is the name of the digit on the bottom of a fraction?
What is [-5]?
What is ?
What is statement A of data sufficiency?
Statement (1) alone is sufficient, but statement (2) alone is not sufficient
What is statement B of data sufficiency?
Statement (2) alone is sufficient, but statement (1) alone is not sufficient
What is statement C of data sufficiency?
Both statements together are sufficient, but neither statement alone is sufficient.
What is statement D of data sufficiency?
Each statement alone is sufficient.
What is statement E of data sufficiency?
Statements (1) and (2) together are not sufficient.
Based on process of elimination of data sufficiency, what are the two groups of answers to choose from based on if statement (1) is correct or incorrect?
A,D or B, C, E
What does data sufficiency mean?
these questions are asking you if the data presented is enough to solve the problem. It does not mean traditional problem solving.
How many "yes", "no" type of questions on Data Sufficiency will there be on the test?
As many as half of all the data sufficiency questions.
What can't you assume on data sufficiency type of questions?
that you can't assume the people, candidates, goats, etc., are the amount of what the question says.
Is answering a question of Data Sufficiency with a "maybe" appropriate enough answer to choose one of the answer choises?
x to the third power, what is x?
x squared, what is x?
what is the associative law?
it can only be done with addition and multiplication, it is where you can switch the numbers around and still get the same answer. 2+3+4 equals the same as 4+2+3. And 4x5x6 is the same as 6x5x4.
when should you factor this, "a(b+c)" is a problem?
when should you factor this, "ab + ac"?
what is distributive form?
what is factored form?
what is 2xy - xy/ y if x = 6?
If ax + ay + az = 15, what is x + y + z? x = 2, a = 5
a=5, problem must be factored
what is a numerator?
the number on top of a fraction
what is a denominator?
the number on the bottom of a fraction
1/7 + 5/7 =/
6/7 - 2/7 =?
Can you add or subtract fractions with different denominators?
no you must make the denominators the same
2/3 x 6/5 =?
how do you divide fractions?
invert the second fraction and multiply
what is a reciprocal?
when a fraction is inverted the new fraction is called a reciprocal.
convert to a fraction, 3 1/2 =?