Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 749 · 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. 1.29 × 28 =
2. 2.33 × 34 =
3. 3.499 × 491 =
4. 4.505 × 502 =
5. 5.93 × 94 =
6. 6.407 × 408 =
7. 7.307 × 309 =
8. 8.606 × 604 =
9. 9.194 × 193 =
10. 10.396 × 395 =
11. 11.606 × 605 =
12. 12.598 × 594 =
13. 13.503 × 501 =
14. 14.398 × 395 =
15. 15.78 × 79 =
16. 16.24 × 22 =
17. 17.504 × 501 =
18. 18.599 × 599 =
19. 19.299 × 298 =
20. 20.17 × 17 =
21. 21.69 × 68 =
22. 22.594 × 597 =
23. 23.47 × 48 =
24. 24.36 × 37 =
25. 25.34 × 32 =
26. 26.505 × 502 =
27. 27.307 × 303 =
28. 28.46 × 48 =
29. 29.304 × 302 =
30. 30.394 × 392 =
31. 31.29 × 27 =
32. 32.19 × 16 =
33. 33.52 × 51 =
34. 34.16 × 19 =
35. 35.69 × 66 =
36. 36.38 × 37 =
37. 37.92 × 93 =
38. 38.501 × 501 =
39. 39.38 × 37 =
40. 40.298 × 291 =

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