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
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*103)+(1.2*105)
1.254*105
300
Solve (2.005*105) - (8.664*102)
1.996336*105
300
Solve (5.1*104)*(2.5*103)
1.275*108
300
Solve
(3.66*10-5)/(2.0*10-3)
1.83*10-2
400
Write in scientific notation 533,000
What is 5.33*10^5
400
Evaluate, round to the nearest tenth
2.44*10^3 + 1.9*10^5
What is 1.9*10^5
400
Evaluate 9.1*10^-5 - 8.2*10^-6
What is 8.28*10^-5
400
3.2*10^-7 * 2*10^-5
What is 6.4*10^-12
400
9.1*10^3 ÷ 7*10^5
What is 1.3*10^-2
500
Write your answer in standard form, 5.27*10^-2
What is 0.0527
500
Evaluate and round to the nearest tenth
4.87*10^6 + 356,000 + 2.87*10^5