Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 76 · 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. 1.393 × 392 =
2. 2.63 × 63 =
3. 3.398 × 392 =
4. 4.61 × 64 =
5. 5.494 × 494 =
6. 6.308 × 302 =
7. 7.67 × 66 =
8. 8.404 × 408 =
9. 9.89 × 89 =
10. 10.27 × 29 =
11. 11.51 × 54 =
12. 12.305 × 306 =
13. 13.193 × 196 =
14. 14.396 × 395 =
15. 15.32 × 32 =
16. 16.298 × 291 =
17. 17.53 × 53 =
18. 18.68 × 69 =
19. 19.509 × 507 =
20. 20.398 × 397 =
21. 21.21 × 24 =
22. 22.392 × 396 =
23. 23.61 × 61 =
24. 24.74 × 71 =
25. 25.199 × 199 =
26. 26.598 × 597 =
27. 27.495 × 494 =
28. 28.303 × 308 =
29. 29.607 × 603 =
30. 30.503 × 502 =
31. 31.593 × 599 =
32. 32.196 × 191 =
33. 33.64 × 64 =
34. 34.395 × 392 =
35. 35.82 × 83 =
36. 36.61 × 64 =
37. 37.71 × 73 =
38. 38.295 × 297 =
39. 39.202 × 209 =
40. 40.293 × 293 =

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