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Decimals
Fractions
Percents
Scientific Notation
Relative Change
100
3/4
Rewrite 0.75 as a fraction in simplest form.
100
12.5
Round 12.476 to the nearest tenth.
100
4.27
Add: 3.4 + 0.87
100
0.03
Multiply: 0.6 × 0.05
100
0.875
Convert 7/8 to a decimal.
200
12
Find a common denominator for 1/3 and 1/4.
200
3/4
Simplify 18/24.
200
1/2
Compute: 2/5 + 1/10
200
6
Compute: 3/4 ÷ 1/8
200
8/5
Write 1 3/5 as an improper fraction.
300
0.35
Convert 35% to a decimal.
300
30%
What percent of 50 is 15?
300
43.2
Find 18% of 240.
300
100
Increase 80 by 25%.
300
$34
A shirt is $40 and discounted 15%. Sale price?
400
4.5 × 10^6
Write 4,500,000 in scientific notation.
400
0.0072
Write 7.2 × 10^-3 in standard form.
400
6 × 10^5
Multiply: (2 × 10^3)(3 × 10^2)
400
4 × 10^5
Which is larger: 5×10^4 or 4×10^5?
400
4.5 × 10^8
Normalize 45 × 10^7 to proper scientific notation.
500
original value
Percent change formula numerator is new value minus what?
500
25% increase
From 200 to 250 is what percent increase?
500
25% decrease
From 80 to 60 is what percent change?
500
100%
A quantity doubles. Percent increase?
500
25% decrease
Original price $120, new price $90: percent change?