Scientific Notation
Is the following expression written in scientific notation? If not, explain why. 3.25+10-7
No, 3.25 should be multiplied by 10-7
Solve the expression (3.7*109) + (9.04*109)
1.274*1010
Solve the expression (4*10-5)*(5*1012)
2*108
Solve the expression (5.3*106)/(4.2*104)
1.26*102
The size of the Sahara Desert is about 3.629*106 square miles and the Arabian Desert is about 9*105 square miles. Which desert is larger? Explain how you know.
Sahara, because it has a larger exponent
Solve (4.5*104)+(1.75*104)
6.25*104
Solve (6*103)*(2*105)
1.2*109
The size of four oceans in square km is shown below. List the oceans from smallest to largest. Pacific Ocean: 1.796*108, Arctic Ocean: 1.323*107, Atlantic Ocean: 1.061*108, Indian Ocean: 7.498*107
Arctic, Indian, Atlantic, Pacific
Solve (5.4*103)+(1.2*105)
1.254*105
Solve (5.1*104)*(2.5*103)
1.275*108
Explain what you would need to do to write 23.22 x 103 in scientific notation.
You would need to add a power of 10 and write the leading number as 2.2322 x 104
5.9 x 105 + 2.3 x 103 =
Write your answer in scientific notation.
5.923 x 105
(4.23 x 103) – (9.56 x 102) =
Write your answer in scientific notation.
3.27 x 103
(7 x 109)(4.6 x 107) =
3.22 x 1017
(9.9 x 1011)/(8.9 x 108) =
1.1 x 103
Why do we use scientific notation?
The purpose of scientific notation is to make the numbers and quantities used easier to comprehend, to read and to write and manipulate with operations.
7.5 x 103 + 5.25 x 105 =
Write your answer in scientific notation.
5.325 x 105
7.8 x 105 - 3.5 x 104
Write your answer in Scientific notation
7.45 x 105
(7.2 x 106)(3.5 x 10-1) =
2.52 x 106
(2.5 x 108)/(2 x 103) =
1.25 x 105