Explanation

a + b = b + a

This means order can be changed in addition and answer remains same.

This property is called Commutative property w.r.t addition.

Last verified on 25-08-2026

Explanation

0.25 = 25/100 = 1/4, which can be expressed as a fraction of two integers.

Therefore, 0.25 is a rational number.

Last verified on 25-08-2026

Explanation

• The product of two rational numbers is always rational because the product of two fractions (or integers) is another fraction (or integer).
• Rational numbers are closed under multiplication, meaning multiplying two rationals results in another rational number.

Last verified on 24-08-2026

Explanation

• The symbol "√" represents the square root.
• It is called a radical.
• It is used in mathematics to indicate the root of a number.

Last verified on 09-07-2026

Explanation

To find the least common multiple (LCM) of 6 and 8, we need to list the multiples of each number:

Multiples of 6: 6, 12, 18, 24, ...

Multiples of 8: 8, 16, 24, ...

The smallest number that appears in both lists is 24, so the LCM of 6 and 8 is: 24

Last verified on 09-07-2026

Explanation

When two negative numbers are multiplied, we get a Positive number.

Example: (-2) × (-3) = 6

Last verified on 24-08-2026

Explanation

First find cost of 1 book:  

Cost of 1 book = 456 / 114 = Rs. 4

Now cost of 60 books:  

Cost of 60 books = 60 × 4 = Rs. 240

Last verified on 24-08-2026

Explanation

Product = First number × Second number

Given:  

Product = 294  

First number = 7  

Second number = ?

294 = 7 × Second number  

Second number = 294 / 7 = 42

Last verified on 24-08-2026

Explanation

7 days × 24 hours = 168 hours

Last verified on 24-08-2026

Explanation

3 × 7 equals 21

So the equation becomes: ___ × 21 = 21

The only number that gives 21 when multiplied by 21 is 1.

Last verified on 23-08-2026