Review the key concepts, formulae, and examples before starting your quiz.
🔑Concepts
Division is the process of repeated subtraction or splitting a large group into smaller, equal groups. For example, sharing cookies among friends means each friend gets cookies equally.
The Dividend is the total number to be divided, while the Divisor is the number of groups or the number we are dividing by. In a long division layout, the Dividend is written inside the division bracket, and the Divisor is written to the left outside.
The Quotient is the result or answer obtained from division, and it is usually written on top of the horizontal line of the division bracket. The Remainder is the amount left over when a number cannot be divided exactly into equal parts.
A very important rule is that the Remainder must always be smaller than the Divisor (). If you find a remainder larger than the divisor, it means you can divide the number one more time.
When dividing by , the digit in the ones place of the dividend always becomes the remainder, and the remaining digits form the quotient. For example, in , the is the quotient and is the remainder.
When dividing by , the digits in the tens and ones places of the dividend form the remainder, and the rest of the digits form the quotient. For example, in , the is the quotient and is the remainder.
Division of any number by results in the number itself as the quotient with remainder. Dividing by any number (except ) always gives as the quotient.
📐Formulae
💡Examples
Problem 1:
Divide by and verify the answer.
Solution:
Step 1: Find how many times goes into . We know and . Since is greater than , we take . \nStep 2: Subtract from . . \nStep 3: The Quotient is and the Remainder is . \nStep 4: Verification: . Since this equals the Dividend, the answer is correct.
Explanation:
We use the multiplication table of to find the closest multiple that is less than . The difference between the dividend and this multiple is our remainder.
Problem 2:
Divide by and find the quotient and remainder.
Solution:
Step 1: Divide the first two digits () by . . Subtracting gives . \nStep 2: Bring down the next digit, which is . \nStep 3: Divide by . . Subtracting from gives . \nStep 4: The Quotient is and the Remainder is .
Explanation:
This is a long division problem. We process the dividend from left to right, bringing down digits one by one until all digits are divided.