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Can We Share? - Basic Division Facts

Grade 3CBSE

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 1515 chocolates and 33 friends; sharing them equally means each friend gets exactly 55 chocolates. Visually, this looks like 33 circles with 55 dots inside each circle.

Repeated Subtraction is another way to understand division. To solve 12÷412 \div 4, you keep subtracting 44 from 1212 until you reach zero: 124=812 - 4 = 8, 84=48 - 4 = 4, and 44=04 - 4 = 0. Since we subtracted 44 three times, 12÷4=312 \div 4 = 3.

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 20÷5=420 \div 5 = 4, 2020 is the dividend, 55 is the divisor, and 44 is the quotient.

Division is the Inverse of Multiplication. They are part of the same 'Fact Family'. If you know that 3×6=183 \times 6 = 18, you automatically know that 18÷3=618 \div 3 = 6 and 18÷6=318 \div 6 = 3.

Properties of 1 and 0: When any number is divided by 11, the quotient is the number itself (7÷1=77 \div 1 = 7). When a number is divided by itself, the quotient is 11 (9÷9=19 \div 9 = 1). When 00 is divided by any number, the quotient is always 00 (0÷5=00 \div 5 = 0).

Division with Remainder: Sometimes things cannot be shared exactly equally. If you share 1111 balls between 22 children, each gets 55 balls and 11 ball is left over. This leftover is called the Remainder. Visually, you see two groups of 55 and one single ball sitting outside the groups.

📐Formulae

Dividend÷Divisor=Quotient\text{Dividend} \div \text{Divisor} = \text{Quotient}

Dividend=(Divisor×Quotient)+Remainder\text{Dividend} = (\text{Divisor} \times \text{Quotient}) + \text{Remainder}

Number÷1=Number\text{Number} \div 1 = \text{Number}

Number÷Number=1\text{Number} \div \text{Number} = 1

💡Examples

Problem 1:

Riya has 2828 flowers. She wants to make bouquets with 77 flowers in each. How many bouquets can she make?

Solution:

Total flowers (Dividend) = 2828 Flowers per bouquet (Divisor) = 77 Number of bouquets = 28÷728 \div 7 Since 7×4=287 \times 4 = 28, then 28÷7=428 \div 7 = 4.

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 77, we find that 77 goes into 2828 four times.

Problem 2:

Solve 15÷315 \div 3 using the repeated subtraction method.

Solution:

Step 1: 153=1215 - 3 = 12 Step 2: 123=912 - 3 = 9 Step 3: 93=69 - 3 = 6 Step 4: 63=36 - 3 = 3 Step 5: 33=03 - 3 = 0 We subtracted 33 five times to reach 00. So, 15÷3=515 \div 3 = 5.

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.