Math Review

Decimals and Precents

100

Write following as percents: 1.6, 0.12  and 0.03

160%, 12% and 3%

200

Write 7% as a demical.

0.07

300

What is 33% of 850?

280.5

400

57 is 68% of what number?

83.82

500

326 is 204% of what number?

159.8

Integers

100

-7 + 5

-2

200

12 - (-10)

22

300

-15 / 3

-5

400

-2 x 2

-4

500

-16 - (-21)

5

Ratios and Rates

100

4:24 = 16: ___

96

200

If a 24-pack of water bottles costs $10.50, what is the price per bottle?

$0.44/bottle

300

97.2 km/hr = ____ m/sec

27 m/sec

400

Write a ratio equivalent to 25:60

5:12, 50:120, 250:600

500

The ratio of people in Roseau in favor of higher parking tickets is 3:1. If there are 2,500 people total in Roseau, how many people are in favor of higher parking tickets?

1875 people

BEDMAS

100

(9 x 2) - 21 + 5

2

200

(-40) + 5 - (-8 x 2)

-19

300

-4 + (-1) x (-7 + 9)

-10

400

-3 x 4 + (-3) - (-8 x 7)

41

500

5 + [8 + (-36)] x [2(-2)]

117

Scientific Notation and Square Roots

100

What is 11²?

121

200

Is 196 a perfect square?

Yes

300

Is 153 a perfect square?

No

400

Write this number in standard form: 7 x 10⁶

7,000,000

500

Write this number is scientific notation: 0.0000256

2.56 x 10^-5