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Decimals
Fractions
Percents
Scientific Notation
Mixed Applications
100
What is 18.38?
Round 18.376 to the nearest hundredth.
100
What is 3/4?
Simplify the fraction 6/8.
100
What is 0.25?
Write 25% as a decimal.
100
What is 4,200?
Write 4.2 x 10^3 in standard decimal notation.
100
What is 75%?
Write 3/4 as a percent.
200
What is 3.96?
Compute 3.4 + 0.56.
200
What is 1/2?
Compute 1/3 + 1/6.
200
What is 48%?
Write 0.48 as a percent.
200
What is 5.6 x 10^-4?
Write 0.00056 in scientific notation.
200
What is $31.00?
A shopper spends $24.99, $5.50, and $0.51. Find the total.
300
What is 8.72?
Compute 12.5 - 3.78.
300
What is 7/12?
Compute 5/6 - 1/4.
300
What is 28?
Find 35% of 80.
300
What is 7.2 x 10^7?
Write 72,000,000 in scientific notation.
300
What is 3 cups?
A recipe uses 2.5 cups of flour. Increase the amount by 20%.
400
What is 0.024?
Compute 0.6 x 0.04.
400
What is 2/3?
Compute (3/5) x (10/9), then simplify.
400
What is a 30% increase?
A quantity increases from 50 to 65. Find the percent increase.
400
What is 6 x 10^7?
Compute (3 x 10^4)(2 x 10^3).
400
What is 276,000, or 2.76 x 10^5?
A population is 2.4 x 10^5 and grows by 15%. What is the new population?
500
What is 24?
Compute 7.2 / 0.3.
500
What is 6?
Compute 2 1/4 divided by 3/8.
500
What is a 25% decrease?
A price drops from $120 to $90. Find the percent decrease.
500
What is 3 x 10^-6?
Compute (9 x 10^-2) / (3 x 10^4).
500
What is 9/20?
A tank is 3/5 full. After 25% of that water is used, what fraction of the full tank remains?