3) Multiplication and Division in Exponential Notation
7.5 × 10⁹
(1.5 × 10³)(5 × 10⁶)
6 × 10¹⁰
(1.5 × 10⁷)(4 × 10³)
4 × 10¹⁵
(2 × 10⁶)(2 × 10⁹)
4 × 10³
(2 × 10⁻⁶)(2 × 10⁹)
6.25 × 10³
(2.5 × 10⁵)(2.5 × 10⁻²) =
6 × 10⁸
(3 × 10⁵)(2 × 10³)
6 × 10²
(3 × 10⁵)(2 × 10⁻³)
9.92 × 10⁶
(3.1 × 10²)(3.2 × 10⁴)
8 × 10²
(4 × 10⁻⁷)(2 × 10⁹)
7.5 × 10³
(7.5 × 10)(1 × 10²)
2.4 x 10⁻¹
. A speck of dust in an electron microscope is 1.2 × 10² millimeters wide. The image is 5×10² times larger than the actual size. How many millimeters wide is the actual speck of dust?
1.2 x 10⁻⁶
Divide.
1.25 x 10³
Divide.
1.4 x 10⁻⁶
Divide.
1.5 x 10⁻²
Divide.
1.75 x 10⁸
Divide.
2 x 10³
Divide.
2 x 10¹³
Divide.
4 x 10⁶
Divide.
4.5 x 10⁹
Divide.
5 x 10⁴
Divide.
6 x 10¹⁰
Divide.
7 × 10⁵
During the school year, each student planted 2 × 10² trees as part of a community service project. If there are 3.5 × 10³ students in the school, how many trees did they plant in total?
5.0×10² seconds
The speed of light is 3×10⁸ meters per second . If the sun is 1.5×10¹¹ meters from earth, how many seconds does it take for sunlight to reach the earth? Write your answer in exponential notation.