Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 939 · 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. 1.407 × 404 =
2. 2.64 × 62 =
3. 3.208 × 209 =
4. 4.29 × 27 =
5. 5.399 × 398 =
6. 6.59 × 57 =
7. 7.77 × 76 =
8. 8.93 × 91 =
9. 9.16 × 19 =
10. 10.93 × 93 =
11. 11.16 × 18 =
12. 12.74 × 74 =
13. 13.48 × 49 =
14. 14.302 × 304 =
15. 15.206 × 207 =
16. 16.49 × 48 =
17. 17.203 × 203 =
18. 18.32 × 31 =
19. 19.307 × 308 =
20. 20.392 × 398 =
21. 21.601 × 603 =
22. 22.601 × 604 =
23. 23.73 × 74 =
24. 24.69 × 67 =
25. 25.59 × 56 =
26. 26.84 × 83 =
27. 27.493 × 495 =
28. 28.67 × 68 =
29. 29.29 × 29 =
30. 30.33 × 33 =
31. 31.94 × 91 =
32. 32.49 × 49 =
33. 33.31 × 33 =
34. 34.508 × 502 =
35. 35.66 × 66 =
36. 36.496 × 494 =
37. 37.595 × 593 =
38. 38.196 × 191 =
39. 39.31 × 32 =
40. 40.49 × 48 =

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