Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 171 · 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. 1.198 × 198 =
2. 2.396 × 399 =
3. 3.62 × 62 =
4. 4.597 × 598 =
5. 5.198 × 197 =
6. 6.46 × 48 =
7. 7.54 × 51 =
8. 8.51 × 51 =
9. 9.73 × 72 =
10. 10.93 × 94 =
11. 11.206 × 207 =
12. 12.69 × 69 =
13. 13.66 × 67 =
14. 14.603 × 608 =
15. 15.405 × 408 =
16. 16.603 × 603 =
17. 17.393 × 391 =
18. 18.605 × 602 =
19. 19.596 × 592 =
20. 20.199 × 195 =
21. 21.72 × 74 =
22. 22.301 × 307 =
23. 23.31 × 34 =
24. 24.409 × 402 =
25. 25.401 × 404 =
26. 26.31 × 31 =
27. 27.81 × 82 =
28. 28.599 × 596 =
29. 29.92 × 94 =
30. 30.81 × 84 =
31. 31.193 × 197 =
32. 32.403 × 408 =
33. 33.61 × 61 =
34. 34.33 × 31 =
35. 35.54 × 52 =
36. 36.59 × 58 =
37. 37.195 × 197 =
38. 38.59 × 59 =
39. 39.399 × 392 =
40. 40.27 × 28 =

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