Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 555 · 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. 1.492 × 491 =
2. 2.301 × 303 =
3. 3.73 × 73 =
4. 4.599 × 592 =
5. 5.23 × 23 =
6. 6.88 × 86 =
7. 7.69 × 68 =
8. 8.64 × 64 =
9. 9.47 × 48 =
10. 10.91 × 94 =
11. 11.297 × 297 =
12. 12.29 × 27 =
13. 13.607 × 606 =
14. 14.87 × 87 =
15. 15.58 × 57 =
16. 16.308 × 309 =
17. 17.67 × 69 =
18. 18.93 × 93 =
19. 19.22 × 22 =
20. 20.16 × 17 =
21. 21.22 × 21 =
22. 22.501 × 508 =
23. 23.79 × 77 =
24. 24.66 × 67 =
25. 25.195 × 194 =
26. 26.37 × 36 =
27. 27.297 × 298 =
28. 28.402 × 402 =
29. 29.195 × 199 =
30. 30.402 × 402 =
31. 31.198 × 198 =
32. 32.204 × 208 =
33. 33.42 × 41 =
34. 34.56 × 59 =
35. 35.594 × 593 =
36. 36.19 × 17 =
37. 37.59 × 56 =
38. 38.501 × 502 =
39. 39.86 × 87 =
40. 40.49 × 49 =

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