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Decimals
Fractions
Percents
Sci Notation
Mixed Change
100
2.8
Round 2.75 to nearest tenth.
100
0.75
Write 3/4 as decimal.
100
40%
Write 0.4 as percent.
100
4.5 × 10^3
Write 4500 in scientific notation.
100
20%
Price 50 to 60: percent increase?
200
1.55
Compute 1.2 + 0.35.
200
3/4
Simplify 6/8.
200
20
25% of 80?
200
6.2 × 10^-3
Write 0.0062 in scientific notation.
200
170
Decrease 200 by 15%.
300
0.9
Compute 4.5 × 0.2.
300
1/2
1/3 + 1/6 = ?
300
25%
18 is what percent of 72?
300
31,000
Convert 3.1 × 10^4 to standard.
300
-25% (25% decrease)
From 40 to 30: percent change?
400
20
Compute 5 ÷ 0.25.
400
3/2
2/5 × 15/4 = ?
400
7/20
35% as simplified fraction.
400
8 × 10^-2
(2 × 10^3)(4 × 10^-5)
400
(new-old)/old × 100%
Percent change formula using old and new.
500
0.009, 0.09, 0.1
Order least to greatest: 0.09, 0.1, 0.009.
500
5/8
7/8 - 1/4 = ?
500
$60
Original after 20% off sale price $48.
500
3 × 10^3
(6 × 10^5)/(2 × 10^2)
500
100%
A value doubles: percent increase?