Scientific Notation
Adding
Subtracting
Multiplying
Dividing
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*109) + (9.04*109)
1.274*1010
100
Solve the expression (7*105) - (5.2*104)
6.48*105
100
Solve the expression (4*10-5)*(5*1012)
2*108
100
Solve the expression (5.3*106)/(4.2*104)
1.26*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*104)+(1.75*104)
6.25*104
200
Solve (2*104) - (4*102)
1.96*104
200
Solve (6*103)*(2*105)
1.2*109
200
Solve (9*108)/(2*102)
4.5*106
300

Pluto is 3.67 × 109  miles from the Sun. Write this number in standard form.

3,670,000,000

300
Solve (5.4*103)+(1.2*105)
1.254*105
300
Solve (2.005*105) - (8.664*102)
1.996336*105
300

Solve (5 *104)*(5*103)

2.5 x 108

300
Solve (3.66*10-5)/(2.0*10-3)
1.83*10-2
400

Write each number in standard form.

7.89 × 108  

789,000,000

400

 (3.92 × 103 )(2.2 × 105 )

8.624 x 108

400

2.052 x 107 / 5.4 x 104

3.8 x 1010

500

Which number is greater: 3.5 x 104   or 2.1 x 106   ?

2.1 x 106

500

(9.62 × 104 ) X (2.58 × 105 )

2.48196 x 1010

500

3.024 x 106/ 4.8 x 102

6.3 x 107

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