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Scientific Notation
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100
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
100

Solve the expression (3.7 x 109) + (9.04 x 109)

1.274 x 1010

100

Solve the expression (7 x 105) - (5.2 x 105)

1.8 x 105

100

Solve the expression (4 x 10-5)(5 x 1012)

2 x 108

100

Solve the expression (5.3 x 106)/(4.2 x 104)

1.26 x 102

200
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
200

Solve (4.5 x 104)+(1.75 x 104)

6.25 x 104

200

Solve (3.5 x 104) - (2.8 x 104)

7 x 103

200

Solve (6 x 103)(2 x 105)

1.2 x 109

200

Solve (9 x 108)/(2 x 102)

4.5 x 106

300
The size of four oceans in square km is shown below. List the oceans from smallest to largest. Pacific Ocean: 1.796*108, Artic Ocean: 1.323*107, Atlantic Ocean: 1.061*108, Indian Ocean: 7.498*107
Artic, Indian, Atlantic, Pacific
300

Solve (5.4 x 105)+(7.3 x 105)

1.27 x 106

300

Solve (9.3 x 10-2) - (8.9 x 10-2)

4 x 10-3

300

Solve (5.1 x 104)(2.5 x 103)

1.275 x 108

300

Solve (3.66 x 10-5)/(2.0 x 10-3)

1.83 x 10-2