Decimals
Fractions
Percents
Scientific Notation
Mixed Review
100
4.25
Add: 3.45 + 0.80.
100
3/4
Simplify 18/24.
100
0.35
Write 35% as a decimal.
100
4.5 × 10^6
Write 4,500,000 in scientific notation.
100
0.6, 62%, 5/8
Order from least to greatest: 0.6, 5/8, 62%.
200
8.82
Subtract: 12.60 − 3.78.
200
5/6
Find 2/3 + 1/6.
200
62%
Write 0.62 as a percent.
200
7.2 × 10^−4
Write 0.00072 in scientific notation.
200
180
Find 3/4 of 240.
300
12
Multiply: 0.25 × 48.
300
3/8
Find 5/8 − 1/4.
300
45
Find 18% of 250.
300
310,000
Write 3.1 × 10^5 in standard notation.
300
0.025
Write 2.5% as a decimal.
400
25
Divide: 7.5 ÷ 0.3.
400
2/3
Find 3/5 × 10/9.
400
$68
An $80 item is discounted 15%. What is the sale price?
400
8 × 10^8
Compute (2 × 10^3)(4 × 10^5).
400
0.583
Write 7/12 as a decimal rounded to the nearest thousandth.
500
$21.64
A $19.99 item has 8.25% sales tax. What is the total, rounded to the nearest cent?
500
6
Find 2 1/4 ÷ 3/8.
500
37.5%
45 is what percent of 120?
500
2 × 10^5
Compute (6.0 × 10^7) ÷ (3 × 10^2).
500
8.568 × 10^6, or 8,568,000
A population of 8.4 × 10^6 grows by 2%. What is the new population?
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