Semester 1 Review Day 2

Scientific Notation

100

Express in standard form: 4.123 x 10^-4

What is .0004123

200

Express in scientific notation: 89,787,000

What is 8.9787 x 10⁷

300

Find the quotient: (6.3 x 10¹⁶)(8.3 x 10^-12)

What is 7.59 x 10²⁶

400

 Find the product of (2.7 x 10^-5)(5.4 x 10¹¹)

What is 1.458 x 10⁷)

Rational Numbers

100

Show that the number is rational by writing it as a quotient of two integers: .34

What is 34/100

200

Show that the number is rational by writing it as a quotient of two integers: .87

Show that the number is rational by writing it as a product of two integer: 87/100

300

Show that the number is rational by writing it as a quotient of two integers: 40

What is 40/1

400

Write the decimal as a fraction or mixed number: 3.125

3 and 1/8

500

Write the decimal as a fraction or mixed number: 5.375

What is 5 and 3/8

Operations with Fractions

100

Find the sum: -3 and 1/4 + (-2 and 3/5)

-117/20

200

-4x/11 - 11x/4

What is -137x/44

300

-3/5 times 2/3

What is -2/5

400

-4b²/9 times b⁵/18

-2b⁷/81

500

1 and 3/8 divided by 2 and 5/11

What is 121/216

Solve me

100

Evaluate: 1/6 divided by 2/9 plus 4/15

61/60

200

Solve the equation: -4/7 times d = -12

What is d = 21

300

Solve the equation by clearing the fractions: -7/10 = 3/4 times a - 13/20

What is a = -1/15

Proportions

100

A man is 130 inches and his son is 40 inches tall.  He casts a shadow that is 100 inches.  How long is his son's shadow?  Round to the nearest inch.

What is 31 inches

200

If triangle ABC is similar to triangle XYZ and the length of AB is 15 and the length of XY is 25 and the length of YZ is 12, what is the length of BC?

What is 7.2 

300

A map has a scale of 1 cm: 7 km.  What is the distance on the map if the actual distance between two places is 21 km?

What is 3 cm

400

A map has a scale of 1 inch: 350 miles.  What is the actual distance if the map distance is 1/2 inch?

175 miles