Decimals
Fractions
Percents
Scientific Notation
Mixed Applications
100
9/20
Write 0.45 as a fraction in simplest form.
100
3/4
Simplify 18/24.
100
0.25
Write 25% as a decimal.
100
4.5 x 10^5
Write 450,000 in scientific notation.
100
60%
Write 3/5 as a percent.
200
4.55
Compute 3.7 + 0.85.
200
3/2 or 1 1/2
Compute 2/3 + 5/6.
200
12
Find 15% of 80.
200
0.0062
Write 6.2 x 10^-3 in decimal form.
200
1/8
Write 0.125 as a fraction in simplest form.
300
18.47
Round 18.467 to the nearest hundredth.
300
13/24
Compute 7/8 - 1/3.
300
30%
18 is what percent of 60?
300
8.1 x 10^-5
Write 0.000081 in scientific notation.
300
8
Find 2.5% of 320.
400
40
Compute 2.4 / 0.06.
400
2/3
Compute 3/5 x 10/9 and simplify.
400
$40
A $50 item is discounted 20%. What is the sale price?
400
6 x 10^7
Compute (3 x 10^4)(2 x 10^3).
400
6.84 x 10^6
A population of 7.2 x 10^6 decreases by 5%. What is the new population?
500
0.57 is greater; 0.507 < 0.57.
Which is greater: 0.507 or 0.57?
500
6
Compute 2 1/4 divided by 3/8.
500
50.4
A value of 45 increases by 12%. What is the new value?
500
4 x 10^4
Compute (8.4 x 10^6) / (2.1 x 10^2).
500
0.036%; 3.6 x 10^-4
Write 0.00036 both as a percent and in scientific notation.
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