WP 12 - Review

Rounding & Scientific Calculator

100

Round 4.9223 to the nearest tenth.

4.9

200

pi * 2

  rounded to nearest whole number.

6

300

Round 712.5934 to the nearest hundredth.

712.59

400

sqrt56

rounded to the nearest tenth.

7.6

500

Round 9876.54321 to the nearest: (a) thousand, (b) hundred, (c) tenth, and (d) thousandth. List all four results.

10000, 9900, 9876.5, 9876.543

Perimeter & Area

100

Perimeter of rectangle (10 cm × 5 cm).

30 cm

200

Area of triangle (base 8 cm, height 6 cm).

24cm^2

300

Area of circle (diameter 18 m).

about 254 m^2

400

Carpet cost for 15 ft × 10 ft room at $14/ft².

$2100

500

Cost to fence L-shaped pen (60 yd + 40 yd + 30 yd) at $90/yd.

$11700

Percents, Decimals & Fractions

100

Convert 25% to fraction.

1/4

200

Convert 0.625 to percent.

62.5%

300

Reduce 36/81

4/9

400

Fill in: 0.5 = ___% = /

50% and 1/2

500

Convert 120% to decimal and fraction.

1.2, 6/5

Proportions & Percent of a Number

100

32% of 68.

21.76

200

Solve: 14/18 = x/21

x = 16.33

300

Sale price of $975 laptop at 25% off.

$731.25

400

How far will you travel on 80L,  if you travel 450 km on 48 L?

750 km

500

Earnings for 92 hours if $139.20 for 8 hours.

$1,600.80