Scaling Shapes
Say it with Decimals
One Hundred Percent
Changes on the Earth
Glossary
100

One rectangle measuring 2 units by 7 units is doubled.

What is 4 units by 14 units?

100

One-fourth (1/4)

What is 0.25?

100

100% of 12 foxes.

What are 12 foxes?

100

The difference between 78,960 and 74,000 sq. km.

What is 4,960 sq. km.?

100

A rate per 100.

What is a percentage?

200

One equilateral triangle with a side length of 3 units is scaled down by 3.

What is 1 unit?

200

two-ninths (2/9)

What is 0.2 repeating?

200

15,000 gallons of water decreased by 20%.

What is 12,000 gallons?

200

The percent decrease from 11,940 tons to 0 tons.

What is 100%?

200

What an expression lacks.

What is an equal sign (=)?

300
The circumference of a circle with a diameter of 7 units scaled up by 3.

What is 65.94 units?

300
approximately twenty-two sevenths (22/7).

What is 3.14?

300

The % increase from $3.50 per gallon of gas to $3.92 per gallon.

What is 12%?

300

The Great Barrier Reef in the waters of this nation have lost over 38,000 square meters of coverage.

What is Australia?

300

The point (0,0) in the coordinate plane.

What is the origin?

400

The scale factor of the area of a square when all sides are tripled.

What is 9?

400

-4 = 12x

What is -0.3 repeating?

400

10% of 115 __ 6% of 230.

What is less than?

400

This liquid metal concentrates in human hair in micrograms in places of poor hygiene.

What is mercury?

400

When your uncle gets paid an extra $600 for selling $3,000 of computer equipment.

What is commission?

500

The boxes of a table with 2 rows and 5 times as many columns.

What is 20?

500
Converting 64 heartbeats per minute to per second.

What is 0.8 heartbeats?

500

100% written in decimal form.

What is 1.00?

500

This body of water bordering Kazakhstan has gotten smaller and saltier since 1986.

What is the Aral Sea?

500

Two numbers that multiply to equal 1.

What are reciprocals?