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Decimals to Percents
Estimation to the nearest ten
Place value
Algebra
Formulas
100
What is 0.26 to a percent?
26%
100
estimate 2344 - 1444
900
100
What place is the 2 in? 5342
Ones place
100
What is X? x+8=13
X=5
100
What is the formula for the area of a square?
bh
200
What is 0.578 to a percent?
57.8%
200
estimate 306+887
1200
200
What place is the 6 in? 765,489
Ten thousands place
200
What is Y? Y+13=20
Y=7
200
What is the formula for the area of a triangle?
1/2bh
300
What is 0.872 to a percent?
87.2%
300
estimate 587-487
100
300
What place is the 8 in? 46,897,435
Hundred thousand
300
What is W? 4w=12
W=3
300
What is the formula for the area of a rectangle?
LW
400
What is .7456 to a percent?
74.56%
400
estimate 4287+8,477
12,770
400
What place is the 7 in? 7,666,660
Millions place
400
What is F? F4=28
F=7
400
What is the formula for the circumfrence of a circle?
pi x D or 2 x pi x R
500
What is 3.9764 to a percent?
397.64%
500
estimate 7,664-2457
5,190
500
What place is the 5 in? 748,956
Tens place
500
What is D? D divided by 8=5
D=40
500
What is the formula for the area of a trapezoid?
1/2 x h (b1 x b2) or 1/2 x h (b x B)