PA - CH3

Estimation

100

Estimate the difference:

6.43 - 4.079

about 2

200

Estimate the sum:

2.06 + 3.91

about 6

300

Estimate the product:

6.25 x 9.87

about 60

400

Estimate the quotient:

4.96 / 2.49

about 2

500

Estimate the product:

3.2 x 14.69

about 45

Formulas

100

A = lw

Find A if l=3 in. and w=5 in.

(need correct label)

15 in²

200

P = 4s

Find P when s=4.7 cm

(with correct label)

18.8 cm

300

P = 2l + 2w

Find P when l=2.9 m and w=6.05 m

(with correct label)

17.9 m

400

d = rt

Find d when r=55 mi/h and t=6 h

(with correct label)

330 mi

500

F = 1.8C + 32

Find F when C=35 degrees

(with correct label)

95 degrees

Equations

100

Solve:

x + 7.8 = 12.5

x = 4.7

200

Solve:

n - 5.9 = 0.5

n = 6.4

300

Solve:

4.1 + c = -1.2

c = -5.3

400

Solve:

d - 6.3 = 11

d = 17.3

500

Solve:

m/2.7 = 14.58

m = 39.366

More Equations

100

Solve:

y - 6.72 = 2.53

y = 9.25

200

Solve:

-9.7 + h = 10.3

h = 20

300

Solve:

4.7h = 30.55

h = 6.5

400

Solve:

-3.4t = 30.94

t = -9.1

500

Solve:

b/(-7.8) = -79.56

b = 620.568

Metric System

100

Which metric unit would measure the height of a truck?

meters

200

Which metric unit would measure the width of a paperback book?

centimeters

300

4.5 m = _______cm

450

400

68 mL = ______ L

0.068

500

50.2 g = _______ kg

0.0502