Exponents
What is the large number that is multiplied called?
What operation do we use when solving a fraction?
Division
What are letters such as x and y called in algebra?
Variables
In the number 14, what digit is in the ones place?
4
When we multiply by a positive power of 10, which way does the decimal place move?
To the right (because the number is getting larger)
What does the power represent in an exponential term?
How many times the base is multiplied by itself
What is the top number called in a fraction?
Numerator
What is the opposite of squaring a number?
Taking the square root
In the number 1,455, what digit is in the hundreds place?
5
In the following expression, how many times would we move the decimal place (and in which direction)?
5.4 x 10-8
8 times to the left
What is any exponent to the 0 power equal to?
1
In order to add or subtract fractions, what part of the fraction must be the same?
The denominator
What is the difference between a constant and a coefficient?
A constant is a standalone number that is its own term
A coefficient is a number multiplied by a variable (e.g. the 4 in 4x)
In the number 17,832, which digit is in the tens place?
In order to simplify scientific notation expressions, we convert them to ____________.
(What is the name of this format?)
Standard form
What should you do with your powers when you divide exponents with the same base?
Subtract
What does K, C, and F stand for when dividing fractions?
Keep, change, flip
(kids can fly)
What are the like terms in
4x - 5y + 3y - 2x
4x and -2x
-5y and 3y
What is the name of the place value that is directly to the right of the decimal point?
Example: The 4 in 1.4
The tenths place
Name one other academic subject that frequently uses scientific notation.
Answers will vary, but we have talked about scientific notation's uses in chemistry and astronomy before in this class.
What should you do with your powers when you multiply exponents with the same base?
Add
In order to simplify fractions, we have to find the ______ of the numerator and denominator.
Greatest common factor
Evaluate the expression 4x - 12y
when x = 5 and y = 1
8
Powers of what number determine how we move from one place value to another?
10
Bonus!
How do we multiply two numbers in scientific notation?
Example: (4.5 x 103) x (2.6 x 102)
Multiply the constants and add the powers of 10 together
Answer: 11.7 x 105