Front

What is rounding in mathematics?

Back

Rounding is the process of adjusting the digits of a number to make it simpler while keeping its value close to what it was. For example, rounding 432 to the nearest ten gives 430.

Front

How do you round a number to the nearest ten?

Back

To round a number to the nearest ten, look at the digit in the ones place. If it is 5 or more, round up. If it is less than 5, round down.

Front

What is a prime number?

Back

A prime number is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers. It has exactly two distinct positive divisors: 1 and itself.

Front

Identify the prime number from the following: 21, 49, 77, 19.

Back

19 is a prime number.

Front

What is the result of 300,600 - 87,654?

Back

The result is 212,946.

Front

What is the nearest ten to 972?

Back

The nearest ten to 972 is 970.

Front

How do you determine if a number is prime?

Back

To determine if a number is prime, check if it has only two divisors: 1 and itself. If it can be divided evenly by any other number, it is not prime.

Front

What is the difference between a composite number and a prime number?

Back

A composite number has more than two positive divisors, while a prime number has exactly two.

Front

Round 432 to the nearest ten.

Back

430.

Front

What is the definition of a whole number?

Back

Whole numbers are non-negative numbers without fractions or decimals, including 0, 1, 2, 3, and so on.