Page 39 - Maths Class 04

Example : Multiply 253 by 25.
253 × 25 = ?

Solution : Step-1 : Step-2 : Step-3 :

Multiply by ones. Multiply by tens. Add the products.

2 1 1
2 5 3 2 5 3 2 5 3

× 2 5 × 2 5 × 2 5
1
1 2 6 5 (253×5)
1 2 6 5 (253×5) 1 2 6 5 (253×5)
+ 5 0 6 0 (253×20)
5 0 6 0 (253×20)
Thus, 253 × 25 = 6325. 6 3 2 5 (253×25)

Practice - 3.2
Practice - 3.2
Practice - 3.2
Practice - 3.2
Practice - 3.2
Practice - 3.2
Practice - 3.2
Practice - 3.2
1. Solve by column method.Solve by column method.
1.
a. a. b. b. c. c.
8
6 8 7 8 57 8 5 5 3 2 13 2 1
5
6 6 2 16 2 1
× × 6 × × 3 44 × × 2 66
6 44
2
3
d. d. 5 e. e. 3 f. f. 9 8 6 68 6 6
9
5 3 1 13 1 1
3 4 7 64 7 6
4 99
6 77
1
× × 4 × × 6 × × 1 22
g. g. 2 2 3 42 3 4 h. h. 6 6 7 26 7 2 i. i. 8
6
2
8 8 3 98 3 9
8
× × 9 × × 8 55 × × 4
9 99
4 44

j. j. 6 k. k. 6 l. l. 2 8 7 88 7 8
2
6 6 8 96 8 9
6 3 9 63 9 6
× × 4 × × 3 × × 2
2 33
4 55
3 33

2. Multiply.
a. 183 × 80 b. 827 × 22 c. 746 × 79 d. 491 × 37

e. 862 × 65 f. 452 × 56 g. 682 × 61 h. 998 × 63

i. 679 × 12 j. 942 × 18 k. 471 × 97 l. 898 × 43

Mathematics-4 39