Review the key concepts, formulae, and examples before starting your quiz.
🔑Concepts
Division is the process of Equal Sharing or Equal Grouping. Imagine you have chocolates and friends; sharing them equally means each friend gets exactly chocolates. Visually, this looks like circles with dots inside each circle.
Repeated Subtraction is another way to understand division. To solve , you keep subtracting from until you reach zero: , , and . Since we subtracted three times, .
Every division statement has three main parts: The Dividend (the total number being divided), the Divisor (the number of groups or the size of each group), and the Quotient (the answer). For example, in , is the dividend, is the divisor, and is the quotient.
Division is the Inverse of Multiplication. They are part of the same 'Fact Family'. If you know that , you automatically know that and .
Properties of 1 and 0: When any number is divided by , the quotient is the number itself (). When a number is divided by itself, the quotient is (). When is divided by any number, the quotient is always ().
Division with Remainder: Sometimes things cannot be shared exactly equally. If you share balls between children, each gets balls and ball is left over. This leftover is called the Remainder. Visually, you see two groups of and one single ball sitting outside the groups.
📐Formulae
💡Examples
Problem 1:
Riya has flowers. She wants to make bouquets with flowers in each. How many bouquets can she make?
Solution:
Total flowers (Dividend) = Flowers per bouquet (Divisor) = Number of bouquets = Since , then .
Explanation:
To find the number of bouquets, we divide the total number of flowers by the number of flowers in each group. Using multiplication tables of , we find that goes into four times.
Problem 2:
Solve using the repeated subtraction method.
Solution:
Step 1: Step 2: Step 3: Step 4: Step 5: We subtracted five times to reach . So, .
Explanation:
Repeated subtraction involves taking away the divisor from the dividend multiple times until the result is zero. The number of times you subtract is the quotient.