Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 483 · 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. 1.23 × 21 =
2. 2.61 × 64 =
3. 3.409 × 409 =
4. 4.61 × 63 =
5. 5.81 × 84 =
6. 6.28 × 29 =
7. 7.391 × 396 =
8. 8.195 × 197 =
9. 9.502 × 509 =
10. 10.48 × 48 =
11. 11.88 × 88 =
12. 12.402 × 403 =
13. 13.62 × 64 =
14. 14.606 × 604 =
15. 15.73 × 72 =
16. 16.192 × 193 =
17. 17.46 × 46 =
18. 18.498 × 498 =
19. 19.16 × 18 =
20. 20.606 × 608 =
21. 21.46 × 49 =
22. 22.39 × 38 =
23. 23.43 × 44 =
24. 24.26 × 26 =
25. 25.82 × 84 =
26. 26.208 × 208 =
27. 27.72 × 74 =
28. 28.16 × 17 =
29. 29.297 × 291 =
30. 30.41 × 42 =
31. 31.494 × 497 =
32. 32.197 × 191 =
33. 33.78 × 79 =
34. 34.406 × 405 =
35. 35.402 × 402 =
36. 36.63 × 64 =
37. 37.498 × 499 =
38. 38.44 × 42 =
39. 39.401 × 407 =
40. 40.18 × 19 =

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