Vocab
The P in PEMDAS
Parenthesis
1/10 + 4/10 (simplify if possible)
1/2 (or 5/10)
-5+17
12
2 + 9* 2
20
2+5*3=21 (bonus points if you give the right answer)
Multiply the 5*3 then add the 2
BP: 17
If I see an exponent on a number or variable what am I supposed to do with that number or variable?
Multiply it by itself this many times.
4/6 -1/3 (simplify if possible)
1/3 (or 2/6)
-91+85
-6
7+3*4-6
13
3/14 + 2/7 =5/14 (bonus points if you give the right answer)
You have to get like denominators before adding.
BP: 1/2 (or 7/14)
Which goes first in order of operations, Addition or Subtraction?
Trick question, either can be first you just have to go from left to right.
3/11 รท 5/22 (simplify if possible)
6/5
2-(-7)
2(4+3)-5
9
8+3*7-6=11 (bonus points if you give the right answer)
You need to multiply 3*7 then add and subtract from left to right.
BP: 23
This word means unknown value in an equation.
Variable
3/10 * 5/7 (simplify if possible)
3/14
-3-(-9)
6
4(6-5)3-6
-2
-10+15=-25 (bonus points if you give the right answer)
Rewrite it so the bigger number is in the front, 15-10
BP: 5
This 5 letter phrase means the Order of Operations.
Hint: Please excuse my dear aunt Sally.
PEMDAS
2 1/2 * 3 1/3 (simplify if possible)
25/3
12-14
-2
15-(2)2+7
18
4(2x-7)= 4(9x)=36x (bonus points if you give the right answer)
You CANNOT combine 2x and 7 because they are not like terms. Instead multiply the 4 into the parenthesis.
BP: 8x-28