Lesson 1 and 2
Write this fraction as a decimal.
0.4
(-6)2 * (-6)5
-67
Add the exponents
Write with a positive exponent.
10-2
1
--
102
Fraction 1/102
Square root of 49
answer :7
solve the equation
x2=900
answer: +30 and -30
square root both sides and then always get two answers
Write each expression using exponents.
3*3*3*3*5*5*q*q
34*52*q2
16t4
___
8t
division problem
2t3
division problem subtract exponents
Write as a negative exponent.
1
--
124
Fraction 1/124
12-4
cube root 1000
1000 second button then hit 0
answer: 10
x2= 25
answer: +5 and -5
Evaluate the expression.
(-9)3
-729
45*56
--------
44*5
Division problem
4*55
3.16 * 103
3,160
move decimal to right 3 times
Round to the whole number
square root 24
4.89
Rounded to whole number 5
type 24 in your calculator then hit square root
The area of a square ice rink is 404 square yards. To the nearest yard, what is the perimeter of the rink?
a) 80 yards
b) 40 yards
c) 20.1 yards
d) 20 yards
square root the 404 =20
20*4 for the perimeter
a) 80 yards
Which fraction is equivalent to the decimal 0.45454545......
a) 9/20
b) 45/100
c) 5/11
d) 2 1/5
c) 5/11
(d7)6
d42
Write number in scientific notation.
90,800
9.08 * 104
Positive exponent because I have a whole number
square root 444
round to nearest whole number
21
square root 54
round to the nearest whole number
answer: 7
Evaluate this expression.
64
1,296
[(52)2]2
58
power to a power Multiply the exponents
400,000,000 mobile devices in the U.S.
1.2 * 109 world wide
write in scientific notation then solve how many times larger the world wide mobile devices users are than U.S.
Hint: divide the two scientific notations
1.2 * 109
-----------
4 * 108
=0.3 * 101
move decimal to the right once to get 3 times larger
square root 196/81
196
-----
81
fraction:
14
---
9
The area of a square ice rink is 4,225 square yards. To the nearest yard, what is the length of one side of the rink?
ONE SIDE OF the rink so just have to square root 4,225
65 yards