Page 36 - Maths Class 05

Practice - 2.5
Practice - 2.5
Practice - 2.5
Practice - 2.5
Find the product.

1. 56798 × 49 2. 64782 × 38 3. 70041 × 36 4. 98642 × 34
5. 84326 × 14 6. 16576 × 139 7. 45942 × 699 8. 43842 × 901

9. 84523 × 444 10. 64284 × 421 11. 34968 × 343 12. 48763 × 243

Multiplication by 10, 100, 1000

« Multiplication of tens (10, 20, 30, 40......)

32 × 10 = 320 43 × 20 = 860 75 × 50 = 3750 48 × 20 = 960

« Multiplication by hundreds (100, 200, 300, 400.....)

78 × 100 = 7800 45 × 300 = 13500 46 × 600 = 27600 64 × 800 = 51200

« Multiplication by thousands (1000, 2000, 4000, 7000...........)

856 × 1000 = 856000 92 × 2000 = 184000

45 × 7000 = 315000 195 × 4000 = 780000

Know
Know
Know
Get to
Get
Get
to
If any number is multiplied by 10, 20, 300, 400, 5000, 70000, etc. first multiply numbers by
1, 2, 3, 4, 5 or 7 or the digit which is given, then place the number of zeros to the right side
of the product.

Practice - 2.6
Practice - 2.6
Practice - 2.6
Practice - 2.6
1. Multiply.
a. b. c. d.
4 5 1 6 8 7 6 8 9 8 0 5 3 4 5 6

× 2 5 7 × 1 2 8 × 4 6 3 × 3 8 2

e. f. g. h.
9 2 8 7 6 8 3 9 2 5 2 7 6 9 1 4 5 5 8 1
× 4 8 3 × 4 0 8 × 4 8 2 × 9 2 7

i. j. k. l.
4 8 0 9 4 2 7 4 6 1 5 6 0 9 4 9 3 2 0 1
× 3 0 8 × 3 8 4 2 × 4 0 5 6 × 4 1 3 2

Mathematics-5 36