Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 858 · 40 sums

The trick (Anurupyena): Pick the working base (like 40 = 4 × 10 or 300 = 3 × 100) and write each number’s difference from it. Cross-add as in trick 3, then multiply that left part by 4 (or 3, 5…). Right part: multiply the differences — 1 digit for a × 10 base, 2 digits for a × 100 base (carry the extra).

1. 1.93 × 91 =
2. 2.23 × 21 =
3. 3.28 × 28 =
4. 4.19 × 18 =
5. 5.294 × 298 =
6. 6.194 × 197 =
7. 7.67 × 67 =
8. 8.608 × 607 =
9. 9.53 × 53 =
10. 10.83 × 81 =
11. 11.294 × 294 =
12. 12.89 × 88 =
13. 13.602 × 601 =
14. 14.58 × 57 =
15. 15.54 × 54 =
16. 16.192 × 195 =
17. 17.89 × 88 =
18. 18.601 × 605 =
19. 19.209 × 204 =
20. 20.77 × 78 =
21. 21.18 × 19 =
22. 22.206 × 204 =
23. 23.199 × 195 =
24. 24.59 × 59 =
25. 25.67 × 67 =
26. 26.72 × 71 =
27. 27.61 × 61 =
28. 28.58 × 56 =
29. 29.63 × 61 =
30. 30.297 × 298 =
31. 31.604 × 609 =
32. 32.299 × 291 =
33. 33.68 × 69 =
34. 34.493 × 496 =
35. 35.67 × 68 =
36. 36.208 × 201 =
37. 37.502 × 505 =
38. 38.598 × 594 =
39. 39.596 × 593 =
40. 40.198 × 197 =

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