Test
Percentages
Percentage tasks are mathematical problems where one needs to find a part or a percentage of the whole based on certain conditions or given values.
Time left: 00:00:00
Sample questions
- Find ___% of number ___.
- Increase the number ___ by ___ percent.
- Select the correct match to ___%
Percentages as hundredths
One percent means one hundredth of a whole: 1% = 1/100. Therefore, 25% is 25/100 or one quarter, 50% is one half and 100% represents the complete quantity.
How can a percentage of a number be found?
To find a% of a number, divide the number by 100 and multiply by a. For example, 20% of 60 is 60 ÷ 100 × 20 = 12. Familiar fractions can simplify calculations: 50% is one half, 25% is one quarter and 10% is found by dividing by 10.
When increasing a quantity by a percentage, first find the increase and then add it to the original quantity. Do not give only the percentage part when the question asks for the new final value.
Related mathematics tests
Operations with multi-digit numbers
Multiplication by a three-digit number. Division of a three-digit number by a two-digit number. Tasks involving addition and subtraction of multi-digit numbers.
Fractions and mixed numbers
Dynamic tasks on improper fractions, mixed numbers, comparison and simple operations.
Decimal numbers
Dynamic tasks on tenths and hundredths, comparing, adding and subtracting decimals, place value and sequences.
Inequality
This test develops reading, forming and solving simple and compound inequalities. Students use greater-than, less-than and equality signs, compare numbers, test possible variable values and write an appropriate solution.
