Place Value
A period placed in a number to separate whole number values from values less than one is called a _____________.
Decimal point
Which property states that the order in which numbers are added does not change the sum of the numbers?
Ex. a + b = b + a
Commutative Property
Bonus points (+3): Commutative Property of Addition
What does the E stand for in PEMDAS?
Exponents
What is it called when you make an approximate answer or solution?
Estimate
What is the letter or symbol that represents an unknown amount that can vary called?
What form is this called?
50,000,000 + 4,000,000 + 700,000 + 2,000 + 800 + 30 + 9
Expanded form
Which property states that the way numbers are grouped does not affect the product?
Ex. a x(b x c) = (a x b) x c
Associative Property
Bonus Points (+3)= Associative Property of Multiplication
Solve.
20 + (30 - 10) x 5
120
Estimate:
20.791 + 5.25 + 3.84 =
30
Equation
What is the number:
800,000 + 40,000 + 2,000 + 800 + 3
842,803
Find the missing number.
7 x ____ = 6 x 7
6
Solve.
18 - 3 x 5 + 2
5
Solve.
0.7 x 4 =
2.8
Solve.
y + 13 = 98
y = ?
85
What place is the 6 in?
930,783,614,337
hundred thousand
Find the missing number.
(7 + 12) + 4 = (7 + __) + 12
4
Solve.
6 x 4 - 4 + 2
22
Solve.
33.3 x 0.3 =
9.99
Solve.
d + 15.5 = 56.03
d = ?
40.53
What place is the 4 in?
912.6489
hundredths
What is the property that states that multiplying a sum by a number gives the same result as multiplying each number in the sum by the number and adding the products?
Ex. 5 x 48 = 5(40 + 8)
Distributive Property
Solve.
(3 x 3) x (2 x 2) + 3
39
Solve.
97.5 divide 6
16.25
Solve.
9.9 = 3x
x = ?
3.3