Wolfram|Alpha Mathematics

Elementary Mathematics

Arithmetic ››

do basic arithmetic
125 + 375 1.05 * 12,000 7^3
find square roots
sqrt 1801

Fractions ››

add fractions
1/6 + 5/12 + 3/4
multiply fractions
3/8 * 2/7
do exact arithmetic with fractions
1/4 * (4 - 1/2)

Percentages ››

convert a fraction to a percentage
convert 1/6 to percent
calculate a percentage of a quantity
30% of 8 miles
compute a discounted price
$29.95 - 15%

Place Value ››

show place values for a number
place values of 6135
find the value of a particular digit of a number
value of the digit 3 in 23904

Mathematical Word Problems ››

solve a word problem
Rachel has 17 apples. She gives 9 to Sarah. How many apples does Rachel have now? Rhonda has 12 marbles more than Douglas. Douglas has 6 marbles more than Bertha. Rhonda has twice as many marbles as Bertha has. How many marbles does Douglas have?