Rounding & Place Value
Round the following to the nearest tenth:
4,827
What is 4,830?
Definition of Exponents
What is repeated multiplication
Numbers are infinite. What do the numbers on the right of zero represent and what do the numbers on the left of zero represent?
What is numbers greater than 0 (POSITIVE) and numbers less than 0 (NEGATIVE)
Numerator versus Denominator
What is what we want (number of pieces) versus Representation of 1 (whole)
Order of operations
What is: GEMS-
G-roups (parentheses)
E-xponents
M-ultiplication or Division
S- ubtraction or Addition
What 2 things must you pay attention to when rounding?
What is the place value that is being rounded & the number to the right of the place value being rounded.
The base versus the exponent
What is the number being multiplied and the amount of times x is multiplied by itself
Example: x5= x⋅x⋅x⋅x⋅x
Base: x
Exponent: 5
Signification of signs
> and <
What is greater than and less than
In order to solve and multiply fractions, you must...
What is multiply fractions ACROSS (Horizontally) unless solving for missing variable.
Solve: 4+6⋅5÷3-7
What is 7
The rule when rounding up
What is round the place value UP if the rounding number is FOLLOWED by 5,6,7,8, or 9
Example:
38 rounded to the nearest ten is 40.
(-3)5
What is -243
Direction to move on the number line when adding negative numbers
What is left
Solve and simplify: 18/27 + 5/9
What is One and 2/7
Solve: 63 ÷ [7(5-2)]
What is 3
The rule for rounding down
What is if the place value is FOLLOWED by 0, 1, 2, 3, or 4, then the place value stays the same and the rest is followed by zeros.
Example: 33 rounded to the nearest tenth is 30
True or False:
42 is the same as 4x2
What is False. Repeated MULTIPLICATION is not the same as repeated addition. Exponents express multiplication of itself.
Example:
4x2= (||||) + (||||) = 8
42= 4x4= (||||) + (||||) + (||||)+ (||||)= 16
Definition of 'absolute value'
What is the distance from zero
True or False:
I can only add/subtract/compare fractions with the same denominator. With the exception of all numerators being 1.
What is True.
Example: 1/2 1/3 1/4 1/5 1/10 1/100
Are in order of greatest to least because the numerator says we have 1 of the parts from the bottom number.
I cannot compare 2/5 16/21 9/17 because they have different denominators.
Solve: 10 ÷ (3+2) x4 +52 +6 -9
What is 30
Round to the nearest thousandth:
5.3824791401
What is 5.3820000000
Evaluate 42+46
What is 48= 65,536
Subtracting negative numbers
What is making a number more positive. Move to the right on the number line.
What do the following have in common: 2/2, 3/3, 5/5, 10/10
What is equivalents of 1 (whole).
-Multiples of 30 (+250pts)
Solve for w:
[(5w-6)/ 3] +2 = 5
What is 3