PEMDAS means P stands for perentecies, E stands for exponents, M stands for exponents, D stands for division, A stands for addition, S stands for Subtraction.
You have to follow these rules in order.
2007-05-02 00:19:44 · 3 answers · asked by vintagelove 2 in Science & Mathematics ➔ Mathematics
P = Parenthesis ( ), brackets { }, braces [ ]
E = exponents x²
D = division 6 / 3= 2
M = Multiplication 6 x 3 = 18
A = Addition 2 + 2 = 4
S = Subtraction 3 - 2 = 1
your equation
- 2 = 3 * 4 = 4 - 2 + 3 * 4 = 10
Do the multiplication first.
- - - - - - -s-
2007-05-02 01:00:15 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
Despite the fact that one of your equations has too many equal signs -
-2+3*4=4 [corrected from -2=3*4=4] does not follow PEMDAS. For this to be an equality, the addition of (-2 + 3) would have to happen before the (* 4) operation, which violates PEMDAS.
-2+3*4=10 follows PEMDAS. Multiplication must occur first, resulting in: -2 + 12 = 10
Addition comes after that, and the equality 10 = 10 holds.
2007-05-02 00:31:10 · answer #2 · answered by MamaMia © 7 · 0⤊ 0⤋
multiply first
-2+3*4
-2+12
10
2007-05-02 00:27:31 · answer #3 · answered by Mathlady 6 · 0⤊ 1⤋