Natural numbers - practice problems

Natural numbers are all positive integers from 1 to infinity. They are also called counting numbers as they are used to count objects. Zero is not natural number. It is represented by numerals as 1,2,3.... 8, ..., etc.

Number of problems found: 1731

Pants
Peter bought 58 pairs of pants, 18 of which were torn. How many pants were not torn, which he had?
Evaluate 36
If a = 8 and b = 4, evaluate the following expression: 2 a − 3 b
Dividend, divisor and quotient
Hiba got the answer of 72 after dividing two numbers. If the divisor was 14, what was the dividend?
50 people
Fifty people went to a play. 3/5 of the people stayed until the end. How many people are left?
In Paris
In Paris, TX, there are approximately 25,000 people. Of those people, 1/4 are under the age of 18. How many people are under the age of 18?

Lucas
Lucas is trying to find 6×15. He knows that 3×15=45. He also knows that 6=2×3. How can Lucas use 3×15 to help him find 6×15?

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