Operations in Scientific Notation

Word Problems

100

Francisco's Deli sells 1.5x10³ packs of chewing gum for 1.8x10¹ days. How many packs of gum does his store sell?

2.7x10⁴

200

The size of the Sahara desert is about 3.629x10⁶ square miles and the Arabian desert is about 9x10⁵ square miles. How much bigger is the Sahara desert?

2.729x10⁶ square miles

300

In Russia, the population was 290.9 million people in 2002. The total health care costs for the country at that time were $ 1.7 trillion. Calculate the average amount spent per person on health care. Round your answer to the nearest hundreths place

5.84x10³

Adding

100

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

1.274*10¹⁰

200

Solve (4.5*10⁴)+(1.75*10⁴)

6.25*10⁴

300

Solve (5.4*10³)+(1.2*10⁵)

1.254*10⁵

Subtracting

100

Solve the expression (7*10⁵) - (5.2*10⁴)

6.48*10⁵

200

Solve (2*10⁴) - (4*10²)

1.96*10⁴

300

Solve (2.005*10⁵) - (8.664*10²)

1.996336*10⁵

Multiplying

100

Solve the expression (4*10^-5)*(5*10¹²)

2*10⁸

200

Solve (6*10³)*(2*10⁵)

1.2*10⁹

300

Solve (5.1*10⁴)*(2.5*10³)

1.275*10⁸

Dividing

100

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

1.26*10²

200

Solve (9*10⁸)/(2*10²)

4.5*10⁶

300

Solve (3.66*10^-5)/(2.0*10^-3)

1.83*10^-2