A - B = A + (-B) A - B = A + (-B) A - B = A + (-B) A - B = A + (-B)
800 + 90 + 4 - 1 = 893
78 + yz = yz + 78
to come up with the total
3-3=0
If you have x+-y=z, than you can turrn it into subtraction: x-y=z. x+-y=x-y
What you write for PEMDAS is P (parenthesis) E exponents M multiplication D division A addition S subtraction!
467 + 1
6000 + 100 + 20 + 5
2000+700+80+4
When you have an algebraic expression, the term is "reducing" the expression when you write the expression in fewer terms or smaller multiples.
24 is 3 x 8 If you have to use both numbers twice: 24 is sqrt(3 x 3 x 8 x 8)