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Decimals
Fractions
Percents
Scientific Notation
Mixed Skills
100
What is 12.5?
Round 12.486 to the nearest tenth.
100
What is 3/4?
Simplify 18/24 to lowest terms.
100
What is 27%?
Write 0.27 as a percent.
100
What is 4.5 × 10^6?
Write 4,500,000 in scientific notation.
100
What are 0.25 and 25%?
Convert 1/4 to a decimal and a percent.
200
What is 4.23?
Add: 3.75 + 0.48
200
What is 1/2?
Add: 2/5 + 1/10
200
What is 12?
Find 15% of 80.
200
What is 0.00032?
Write 3.2 × 10^-4 in standard form.
200
What is 30%?
A price rises from $50 to $65. Find the percent increase.
300
What is 0.024?
Multiply: 0.6 × 0.04
300
What is 6/5 (or 1.2)?
Multiply: (3/7)(14/5)
300
What is 0.625?
What decimal is equivalent to 62.5%?
300
What is 6 × 10^5?
Multiply (2 × 10^3)(3 × 10^2).
300
What is 7/8?
Convert 0.875 to a fraction in simplest form.
400
What is 18?
Divide: 5.4 ÷ 0.3
400
What is 5/2 (or 2.5)?
Divide: 5/6 ÷ 1/3
400
What is 25%?
30 is what percent of 120?
400
What is 4 × 10^4?
÷ in scientific notation: (8 × 10^7)/(2 × 10^3).
400
What is 3/10, 32%, 0.35?
Order from least to greatest: 0.35, 3/10, 32%.
500
What is 6.744?
Subtract: 10.00 − 3.256
500
What is 3/8 cup?
A recipe needs 3/4 cup sugar; you make half the recipe. How much sugar?
500
What is $36?
A shirt originally $48 is discounted 25%. Sale price?
500
What is 2 × 10^4?
(5 × 10^-2)(4 × 10^5) in scientific notation.
500
What is 1/40?
Express 2.5% as a fraction in simplest form.