Inequality/Expressions/Equations
An expression is when...
you have no equal sign
What is the commutative property?
What is the order of operations?
True or False:
8 * 2 = 18 - 2
True
What part of the order of operations do we NOT use in 5th grade
Exponents
An inequality uses...
< , > , or not equal too
What property is this?
4(5 + 4) = (4X5) + (4X4)
Distributive
What step would I do 2nd here?
3 + (7 + 1) X 2
Multiply would be second
What do I do with a variable when it has a value??
Example- B = 6
4b - 7
Replace the b with 6. This would mean I would take 4 times 6 minus 7
Solve if A=3 and B=5
(6 + b) - A X 2
(6 + 5) - 3 X 2 = 5
An eqaul sign
What property is this?
12 * 3 * 4 = 4 * 3 * 12
Commutative
Solve this expression:
6 + 7 - 2 X 5
Answer = 3
Solve when A=8
5a + (6 - 2)
5(8) + (6-2) = 44
What is our hand signals for the order of operations?
Showed me using the hand signals.
What is this?
5 + 4 - 9 = 10 - 9 + 1
Equation
What property is this?
102 + 34 + 122 = 34 + 122 + 102
Commutative
Solve this expression:
(3 + 5) X (7 - 3) + 2
Answer = 34
Solve when D=12
6 * 2 + D -7
6 * 2 + 12 - 7 = 17
What's Mrs. Minson's favorite animal?
PENGUIN!!!
What is this?
12 * 7 > 35 * 2
Inequality
What Property is this?
(12 + 3) + 56 = 12 + (3 + 56)
Associative
Solve this expression:
[3 + 5 x (2 + 3)] - 10
Answer = 18
2C + 5A - 10
2 X 6 + 5 X 4 - 10 = 22
What math operation would make this correct?
6 __ 7 __ 10 = 52
adding, subtracting, multiplying, dividing?
6 X 7 + 10