# Maths practice for 13 year olds

#### Number of problems found: 6480

- Sqrt of 24

What is the square root of 24? - Percentages

Expressed as a percentage: - Percentages

52 is what percent of 93? - One half

One half of 2^{ 75}is: ... - Convert 8

Convert 11/2 into a percent? - Which 3

Which is an equivalent ratio of 12:36 - The square

The square root of 25 times the square root of 81 is what number? - What percentage

What percentage is 12 km out of 80 km? - Strange x

For what x is true x=19x? - Absolute 37423

Add the absolute values: - Percent decrease

77 to 59. Find the percent decrease. - Percent change 2

98.6 to 101.2; what is the percent change? - Cube root

Find the cube root of 18 - Fifth of the number

A fifth of the number is by 24 less than that number. What is the number? - Roots

Calculate the square root of these numbers: - ABS

What is the value of ||-81|-|-90||? - Is equal

Is it equal following terms? -9^{ 21}= (-9)^{ 21} - Determine 3885

Determine the sum of the square roots of 81. - Percent increase

2.22 to 2.52 What is the percentage increase? - Percent base

75% of 40 is 30. What is the base?

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