This is Mental
Mental Math
4+(-2)
2
4+2*2
8
1.2 + 4.5
5.7
2x+3=5
x=1
Rewrite in Scientific Notation:
224
2.24 xx 10^2
x^3(x^7)
x^10
Determine the slope of the equation:
y=2x-7
m=2
-2+3
1
6div2-3
5.6 + 6.75
12.35
3x - 7 = 2
x=3
Rewrite in Standard Notation:
3 xx 10^(-1)
0.3
x^3/x^2
x
Determine the y-intercept.
y=1/2x-4
b=-4
-7-2
-9
4+2-3
3
4.21 - 3.3
0.91
(4x)/3=24
x=6
Rewrite in Scientific Notation:
0.00041
4.1 xx 10^(-4)
(x^3)^4
x^12
Find the slope.
y-3x=4
m=3
5-(-5)
10
4*3+2
14
4.2 xx 1.1
4.62
x/5 -3=7
x=50
Solve and rewrite in Scientific Notation:
(4 xx 10^3) xx (2 xx 10^4)
8 xx 10^7
x^3(x^-4)
x^-1
1/x
Find the y-intercept.
y+2=3x
b=-2
-8-(-7)
-1
4div2*4
8
2.3 xx 1.4
3.22
(8-x)/3 = 3
x=-1
Solve and rewrite in Scientific Notation:
(2.3 xx 10^3) + (2.1 xx 10^2)
2,510
(x^2 y^3)/(x y)
xy^2
Find the slope.
2y+4x=6
m=-2