Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 317 · 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. 1.28 × 28 =
2. 2.502 × 506 =
3. 3.294 × 298 =
4. 4.602 × 603 =
5. 5.499 × 491 =
6. 6.23 × 22 =
7. 7.201 × 208 =
8. 8.87 × 89 =
9. 9.39 × 36 =
10. 10.79 × 79 =
11. 11.495 × 499 =
12. 12.196 × 198 =
13. 13.38 × 36 =
14. 14.391 × 399 =
15. 15.598 × 597 =
16. 16.198 × 191 =
17. 17.54 × 53 =
18. 18.499 × 497 =
19. 19.204 × 208 =
20. 20.495 × 492 =
21. 21.51 × 52 =
22. 22.19 × 19 =
23. 23.303 × 302 =
24. 24.202 × 201 =
25. 25.305 × 305 =
26. 26.395 × 393 =
27. 27.407 × 402 =
28. 28.602 × 607 =
29. 29.79 × 79 =
30. 30.64 × 61 =
31. 31.34 × 32 =
32. 32.27 × 27 =
33. 33.42 × 43 =
34. 34.28 × 29 =
35. 35.197 × 195 =
36. 36.82 × 81 =
37. 37.398 × 396 =
38. 38.31 × 31 =
39. 39.599 × 597 =
40. 40.196 × 198 =

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