Text Book Back Exercises Questions with Answers, Solution : 4th Maths : Term 2 Unit 2 : Numbers : Exercise 2.1 (Multiplication by lattice algorithm)

__Exercise 2.1__

**1. Multiply the following numbers by using lattice method.**

**(i) 52 × 49**

52 x 49

Answer: 52 x 49 = 2548

**(ii) 347 × 5 **

Answer: 347 x 5 = 1735

**(iii) 127 × 7**

Answer: 127 x 7 = 889

**(v) 65 × 37 **

Answer: 65 x 37 = 2405

**(v) 789 × 4 **

Answer: 789 x 4 = 3156

**(vi) 37 × 29**

Answer: 37 x 29 = 1073

**2. Multiply the following numbers by using standard method;**

**(i) 72 × 29 **

Answer: 72 × 29 = 2088

**(ii) 31 × 27 **

Answer: 31 × 27 = 837

**(iii) 93 × 42**

Answer: 93 × 42 = 3906

**(iv) 124 × 6 **

Answer: 124 × 6 = 744

**(v) 206 × 8 **

Answer: 206 × 8 = 1648

**(vi) 479 × 3**

479x3

Answer: 479 × 3 = 1437

**3. One box contains 25
apples. How many apples are there in 36 such boxes?**

No.of apples in 1 box = 25

No.of apples in 36 boxes= 36 × 25

Answer: There are 900 apples in
36 boxes.

**i. There are 28 pages in a
daily newspaper. If Ajay buys newspapers for 45 days, how many pages will it
contain**** ****?**

No. of pages for 1 day = 28

No. of pages for 45 days = 45 × 28

Answer: It will contain 1260
pages

**ii. A truck carries 125 bags
of rice. If each bag has 9 kg of rice, how much kg of rice will there be in the
truck.**

Weight of rice in 1 bag = 9 kg

Weight of rice in 125 bags = 125 × 9

Answer: There will be 1125kg of
rice in the truck.

**iii. If the cost of one
chair is ****₹**** ****857. What will be the cost of 6 chairs**** ****?**

Cost of 1 chair = ₹ 857

Cost of 6 chairs = 857 × 6

Answer: The cost of 6 chairs will
be ₹ 5142.

Tags : Numbers | Term 2 Chapter 2 | 4th Maths , 4th Maths : Term 2 Unit 2 : Numbers

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4th Maths : Term 2 Unit 2 : Numbers : Exercise 2.1 (Multiplication by lattice algorithm) | Numbers | Term 2 Chapter 2 | 4th Maths

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