Fix My Mistake
9 - 3 x 2
6 x 2
= 12
9 - 3 x 2
9 - 6
= 3
Give the acronym we use to remember the order of operations and what each letter means
GEMS or GEMDAS. Grouping, Exponents, Multiplication/Division, Addition/Subtraction
Write in exponent form
2 x 2 x 2 x 2 x 2 x 2
26
(14 + 6) x (12 -4) -9
151
Simplify the expression below
42 x 12
192
10÷5 x 2
10 ÷ 10
= 1
10÷5 x 2
2 x 2
= 4
The order in which numbers are added or multiplied does not change the result.
3+4=4+3 or 2x6=6x2
Which property is this?
Commutative Property
Write in exponent form
3 x 3 x 3 x 5 x 5 x 5 x 5
33 x 54
(15 - 5) x 10 + 3
103
Use the commutative property to write an expression that is equivalent to the problem below
(2 x 5) + (3 x 2)
(3 x 2) + (2 x 5)
5 x 5 +1
5 x 6
= 30
5 x 5 + 1
25 + 1
= 26
What property is this?
If we multiply a value by a set of numbers, we will get the same result even if we multiply the value by each number individually
4 x (3 + 5)= 4 x 3 + 4 x 5
Distributive Property
-12 - 8 ÷ 2 + 3
13
6 x 8 + ( 7 - 6 )
49
The price of a car depreciates by $2,000 every year. What integer represents the change in price after 5 years?
-$10,000
4 + 5 + 7 - 3 x 2
9 + 7 - 3 x 2
16 - 3 x 2
13 x 2 = 26
4 + 5 + 7 - 3 x 2
4 + 5 + 7 - 6
9 + 7 - 6
16 - 6= 10
The value of a number does not change if we add 0 or multiply by 1.
5+0=5 5x1=5
What property is this?
Identity Property
20 ÷ (8 - 32) + 16
-4
( 10 + (-19) - 5 ) x (-2)
28
The temperature in Denver drops 5 degrees every hour. What integer represents the change in temperature after 6 hours?
-30 degrees
The problem was 20 - 5 x 2 + 3. My answer was 33. What did I do wrong?
I did not multiply first. The answer should be 13.
Santa had to cover 2 rectangular presents with the same length together to make one big present. The length was 5 feet and present 1 had a width of 2 feet and present 2 had a width of 4 feet. Write an expression to represent the total area and solve for it.
5 x (2+4)
Area= 30 feet2
Find the prime factorization of 144
2 x 2 x 2 x 2 x 3 x 3
or
24 x 32
What is the prime factorization of 250
5 x 5 x 5 x 2
or
53 x 2
Write the Prime Factorization of 60 from least to greatest
22 x 3 x 5