Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 860 · 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. 1.88 × 89 =
2. 2.71 × 74 =
3. 3.296 × 299 =
4. 4.32 × 31 =
5. 5.94 × 92 =
6. 6.72 × 74 =
7. 7.493 × 493 =
8. 8.308 × 303 =
9. 9.297 × 299 =
10. 10.69 × 67 =
11. 11.196 × 199 =
12. 12.66 × 69 =
13. 13.36 × 38 =
14. 14.61 × 63 =
15. 15.59 × 59 =
16. 16.68 × 69 =
17. 17.194 × 199 =
18. 18.83 × 83 =
19. 19.42 × 43 =
20. 20.507 × 509 =
21. 21.493 × 499 =
22. 22.91 × 91 =
23. 23.594 × 591 =
24. 24.295 × 293 =
25. 25.34 × 32 =
26. 26.491 × 496 =
27. 27.306 × 309 =
28. 28.82 × 83 =
29. 29.64 × 63 =
30. 30.58 × 57 =
31. 31.22 × 21 =
32. 32.395 × 391 =
33. 33.497 × 491 =
34. 34.72 × 71 =
35. 35.303 × 301 =
36. 36.399 × 399 =
37. 37.42 × 43 =
38. 38.198 × 195 =
39. 39.602 × 608 =
40. 40.86 × 87 =

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