Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 964 · 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. 1.38 × 37 =
2. 2.491 × 491 =
3. 3.27 × 27 =
4. 4.29 × 29 =
5. 5.603 × 608 =
6. 6.606 × 609 =
7. 7.26 × 26 =
8. 8.504 × 505 =
9. 9.16 × 18 =
10. 10.294 × 291 =
11. 11.74 × 74 =
12. 12.304 × 302 =
13. 13.81 × 82 =
14. 14.58 × 56 =
15. 15.92 × 91 =
16. 16.297 × 293 =
17. 17.494 × 497 =
18. 18.194 × 193 =
19. 19.17 × 16 =
20. 20.407 × 401 =
21. 21.67 × 68 =
22. 22.89 × 89 =
23. 23.58 × 58 =
24. 24.396 × 392 =
25. 25.403 × 408 =
26. 26.86 × 87 =
27. 27.207 × 209 =
28. 28.81 × 84 =
29. 29.37 × 39 =
30. 30.88 × 89 =
31. 31.299 × 296 =
32. 32.51 × 53 =
33. 33.403 × 405 =
34. 34.69 × 66 =
35. 35.16 × 17 =
36. 36.208 × 209 =
37. 37.496 × 491 =
38. 38.69 × 69 =
39. 39.38 × 39 =
40. 40.398 × 397 =

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