Exponents
4x4x4x4x4x4x4
What is 47 expanded?
What is the power to power rule?
10
What is the base in scientific notation?
400 000 after a multiplication.
What is (5x10n)x(8x10m)?
n + m = 4
Is -28 the same answer as (-2)8? Explain.
No, without parentheses () the answer will be negative, with them the answer will be positive.
35
What is 3x3x3x3x3 simplified?
64y3
What is (4y)3?
x
What is the operation in scientific notation?
2000 after a division.
What is (8x10n)/(4x10m)?
What is (6x10n)/(3x10m)?
What is (9x10n)/(4.5x10m)?
n - m = 3
Shelly's work is shown below: (54)(5-3) = 5 Is Shelly correct? Explain.
Yes, 4+-3 = 1. 51=5
-27
What is (-3)3 ?
Keep the base, add the powers.
How do you simplify multiplying exponents?
Leading number.
3000 after an addition
On boards.
Is the following number written in scientific notation? Why or why not? 13.79 x 107
No, 13.79 is greater than or equal to 10.
1
What is anything to the power 0?
Divide the leading numbers, keep the base the same, subtract the exponents.
How do you simplify dividing exponents with coefficients?
The negative exponent.
How can you tell if a number is a decimal?
6500 after a subtraction.
on boards.
The mass of Mars is about 6.4 x 1023 kg. It would take about 2,970 of the planet Mars to equal the mass of Jupiter. What is the mass of Jupiter?
1.9008 x 1027
9-2
What is 1/81 written with exponents?
Itself.
What is anything to the power 1?
100
What must you multiply by if the leading number is between 1 and 10?
1 after a calculation.
on board.
Jahliek solved the problem shown below: (2 x 104)(1.8 x 106) = 3.6 x 10-2 Is he correct? Explain.
No. He was supposed to add the exponents, not subtract.