Perform the indicated operation.
(2.3 x10^-4) + (4.5 x 10 ^9)
4.5 x10 ^9
100
Which operation should be preformed first?
9 + 18 • 15 + -12 ÷ -6
Mulitiplication
100
When dividing expressions with exponents containing like bases, which operation should be applied to the exponents when simplifying?
Subtraction
200
What is the value of 11 squared?
121
200
Convert 5,300 to scientific notation.
5.3 x 10 ^ 3
200
(5.6x10^3) - (2.4 x 10^-2)
5.599976 x 10^3
200
Solve
8 • 10 + 6 ÷ -3 – 12
66
200
Write an expression equivalent to x • x • x • x • y • y • y • y • y • y • z • z?
(X^4)(y^6)(z^2)
300
If a square has 169 tiles in it, what is the length of one side?
13
300
Is the following number correcting written in scientific notation?Why or Why not?
43.2 + 10 ^6.
No because the first number is greater than 10 and it is addition, but it is supposed to be mulitplication
300
(6.78x10^5)(2.102 x 10^3)
1.418175 X 10 ^9
300
Solve
128 ÷ [4 ÷ (1 ÷ 2)]
16
300
Simplify 4xy(3x+6y)
12x^2y+24xy^2
400
What two numbers does the square root of 85 fall between?
Between 9 and 10
400
Convert 3.2 x 10 ^ -7 to standard form.
0.00000032
400
The mass of Venus is 4.87 x 10^ 24 kilograms and the mass of Pluto is 12.5 x 10 ^ 21 kilograms. How much larger is the mass of Venus than the mass of Pluto?
4.8575 x 10^ 24
400
solve
[8(-2 + 1) + 2] • (3 – 4 ÷ 2)^-2
-6
400
(x^-6)^4
(x^-24)
500
Which number does the square root of 250 fall closer to?
16
500
Convert .000067895 to scientific notation
6.7895 x 10 ^-5
500
The mass of one electron is 9.1 x 10^-31 kilograms. What is the mass of 3 x 10^4 electrons in scientific notation?
2.73 x 10 ^-26
500
Which of these operations could be performed first in the expression below? (DOK2)
16 – 8 ÷ [ (square root of 16) + 2] • 7