# Maths practice for 12-year-olds.

#### Number of problems found: 4147

- What is 20

What is ⅔ × ⅚? - Simplify 12

Simplify {1/3 + 1/12} ÷ {2/3 - 5/8} - Compare:

What is bigger? ... - Circle

What is the radius of the circle whose perimeter is 10 mm? - Simple equation

Solve for x: 3(x + 2) = x - 18 - Inequation

Solve the inequation: 5k - (7k - 1)≤ 2/5. (5-k)-2 - Numeric question

Is it possible a negative, irrational number? - Estimate subtraction

What's the estimate of 3 1/3 - 1 5/6? - Convert 6

Convert to a decimal 15/100. - Convert 5

Convert to a mixed number and simplify: 83/6 - Convert 4

Convert 2 7/10 into an improper fraction. - The sum 14

The sum of five times a number and 10 equals the difference between the number and 10. - Which 3

Which is an equivalent ratio for 12:36 - Combine / add term

Combine like terms 4c+c-7c - Circle area

Calculate the circle area with a radius of 1.2 m. - What percentage

What percentage is 12 km out of 80 km? - Triangle

Can an equilateral triangle have a right angle? - Strange x

For what x is true x=19x? - Diagonal

Can it be a diagonal diamond twice longer than its side? - Diagonal

Can a rhombus have the same length, diagonal, and side?

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