✖️➗ Chapter 13 – Ways to Multiply and Divide
Main Topics: Multiplication methods, Large numbers, Division strategies, Real-life problems
📘 Introduction
In daily life, we often need to find the total cost, total quantity, or share things equally. For this, we use multiplication and division. This chapter teaches us smart and easy methods to do both.
👩🏫 Bela’s Method of Multiplication
✔ Example
$31 = 30 + 1$
$65 \\times 30 = 1950$
$65 \\times 1 = 65$
Total = $1950 + 65 = 2015$
💰 Maniratnam – The Cashier
Days in January = $31$
✍️ Multiplication with Large Numbers
$195 \\times 30 = 5850$
$195 \\times 1 = 195$
Total = $6045$
🍳 Shantaram – A Special Cook
Days in a year = $365$
So, Shantaram earns ₹$60,225$ in a year.
📅 Years and Years (Daily Life Problems)
In one month (30 days):
$8 \\times 30 = 240$ glasses
In one year:
$8 \\times 365 = 2920$ glasses
📐 Karunya – The Landlord (Area + Cost)
| Field | Length | Breadth | Area (sq m) |
|---|---|---|---|
| A | 28 m | 27 m | $28 \\times 27 = 756$ |
| B | 36 m | 12 m | $432$ |
| C | 27 m | 19 m | $513$ |
➗ Introduction to Division
✔ Example
$9588 \\div 6 = 1598$
She will pay ₹$1598$ every month.
🔁 Checking Division
🧠 Fun with Multiplication (Patterns)
$(1234 \\times 9) + 5 = 11111$
🧮 Long Division Example
🎯 Practice Questions
2) $360 \\times 12$
3) $4228 \\div 4$
4) $770 \\div 22$
5) Check $976 \\div 25$ and find buses needed.
✅ Quick Revision
✔ Multiply step-by-step
✔ Division = equal sharing
✔ Always check division by multiplication
✔ Patterns make maths fun
🎉 Chapter Complete
After this chapter, students can confidently solve large multiplication, division problems, and real-life word problems.
📝 Worksheet – Ways to Multiply and Divide
Chapter: Ways to Multiply and Divide
Main Skills: Multiplication, Division, Word Problems 🎯
Section A – Multiple Choice Questions (MCQs)
Q1. $65 \times 30$ is equal to:
Q2. If $365$ days are in one year, how many days are in $4$ years?
Q3. $9588 \div 6$ equals:
Q4. The remainder when $969 \div 4$ is:
✔ Q2 → (c) $1460$
✔ Q3 → (b) $1598$
✔ Q4 → (b) $1$
Section B – Fill in the Blanks
2) $165 \times 100 =$ __________.
3) Division means __________ sharing.
4) $25 \times 4 =$ __________.
✔ $16500$
✔ equal
✔ $100$
Section C – Very Short Answer Questions
1) What is multiplication?
2) What is division?
3) Write the remainder in $57 \div 5$.
✔ Equal sharing or grouping.
✔ Remainder = $2$
Section D – Short Answer Questions
Q1. Find $48 \times 23$ using a step method.
Q2. Divide $4228$ by $4$.
Q3. How can division be checked?
✔ $4228 \div 4 = 1057$
✔ By multiplying quotient with divisor.
Section E – Long Answer Questions
Q1. A cook earns ₹$165$ per day. How much will he earn in $365$ days?
Q2. Dolma has to repay ₹$9588$ in $6$ months. How much will she pay every month?
✔ Monthly payment = ₹$1598$
Section F – HOTS / Thinking Questions ⭐
Q1. If a number is multiplied by $10$, how does the number change?
Q2. Which is faster: multiplying by $100$ or multiplying by $10$ twice? Explain.
✔ Both give the same result because $10 \times 10 = 100$.
🎯 Worksheet Complete
✔ Revise long division carefully
✔ Check answers by reverse operation
✔ You are now **exam-ready** ✅