Lattice multiplication is helpful while dealing with numbers with more than two digits. We follow the following steps in Lattice multiplication.

**Mutiplication of a number with other
number can be done in the following ways.**

(i)
Dot multiplication

(ii) Repeated addition

(iii) Regrouping

(iv) Standard multiplication algorithm

(v) Lattice multiplication

__Lattice
multiplication:__

Lattice multiplication is helpful
while dealing with numbers with more than two digits. We follow the following
steps in Lattice multiplication.

__(i) 52____ ×____ 36 __

Step 1: **Write the numbers to
be mutiplied as follows.**

Step 2: **Draw diagonals of the square.**

Step 3: **Mulitiply the numbers
and write them in the cells as shown**** ****below**

Step 4 : **Find the sum of each
diagonal and write as follows.**

Step 5: **Arrange the sum to get answer as
follows.**

** **

__Exercise__

** **

**1. Find the product
using standard algorithm:**

**i)
20 × 2=**

**ii)
21 × 4 =**

**iii)
65 × 5 =**

** iv) 14×3=**

** v) 26 × 10 =**

**i) 20 × 2=**

Product 20 × 2 = 4

**ii) 21 × 4 =**

Product 21 × 4 = 84

**iii) 65 × 5 =**

Product 65 × 5 = 325

** iv) 14×3=**

Product 14 × 3 = 42

** v) 26 × 10 =**

Product 26 × 10 = 260

** **

**2. Complete the
following table**

i) If the
cost of one pen is ₹ 5, what will be the cost of 8 pens?

8 × 5 = 40

ii) If there
are 7 balls in a bag, how many balls will be there in 4 bags?

4 × 7 = __28__

iii) If the
cost of one book is ₹ 10, what will be the cost of 7 books?

__7__** **× 10 = __70__

iv) If there
are 6 buttons in a shirt, how many buttons will be there in 3 shirts?

** 3** ×

** **

**3. ****Find the product of the following numbers using lattice ****multiplication**

**i)
22× 25**

**ii)
34 × 51**

**iii)
45 × 24**

**i) 22 × 25**

**Answer : 550**

**ii) 34 × 51**

**Answer : 1734**

**iii) 45 × 24**

**Answer : 1080**

Tags : Numbers | Term 2 Chapter 1 | 3rd Maths , 3rd Maths : Term 2 Unit 1 : Numbers

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3rd Maths : Term 2 Unit 1 : Numbers : Lattice multiplication | Numbers | Term 2 Chapter 1 | 3rd Maths

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