Multiply the numbers
you divide and divide again then multiply then add then subtract then finally get the root
Multiply two odd numbers Add an even and an odd Subtract an odd and an even
They mean that if you subtract one of the two digit numbers from another then that is the difference. The numbers in the question are usually smallest first so you can't subtract like that. In these questions you may change the order of the numbers.
Add, subtract, multiply and divide.
add, subtract, multiply, divide
Compatible Numbers are numbers that are close in value to the actual numbers and easy to add, subtract, multiply or divide mentally
If you add, subtract or multiply rational numbers, the result will be a rational number. It will also be so if you divide by a non-zero rational number. But division by zero is not defined.