Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 234 · 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. 1.89 × 86 =
2. 2.49 × 49 =
3. 3.392 × 392 =
4. 4.309 × 306 =
5. 5.402 × 407 =
6. 6.306 × 303 =
7. 7.597 × 593 =
8. 8.62 × 64 =
9. 9.37 × 38 =
10. 10.84 × 83 =
11. 11.51 × 52 =
12. 12.46 × 48 =
13. 13.71 × 73 =
14. 14.38 × 38 =
15. 15.305 × 304 =
16. 16.78 × 79 =
17. 17.91 × 94 =
18. 18.299 × 296 =
19. 19.499 × 498 =
20. 20.88 × 88 =
21. 21.21 × 21 =
22. 22.68 × 67 =
23. 23.58 × 59 =
24. 24.392 × 398 =
25. 25.398 × 393 =
26. 26.303 × 306 =
27. 27.198 × 199 =
28. 28.34 × 32 =
29. 29.58 × 59 =
30. 30.24 × 24 =
31. 31.89 × 86 =
32. 32.399 × 395 =
33. 33.78 × 78 =
34. 34.397 × 397 =
35. 35.48 × 49 =
36. 36.303 × 305 =
37. 37.395 × 397 =
38. 38.194 × 198 =
39. 39.597 × 595 =
40. 40.43 × 43 =

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