Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 587 · 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. 1.401 × 403 =
2. 2.299 × 295 =
3. 3.506 × 503 =
4. 4.23 × 21 =
5. 5.77 × 79 =
6. 6.397 × 393 =
7. 7.408 × 405 =
8. 8.56 × 57 =
9. 9.293 × 293 =
10. 10.18 × 19 =
11. 11.58 × 57 =
12. 12.62 × 61 =
13. 13.29 × 28 =
14. 14.67 × 68 =
15. 15.46 × 48 =
16. 16.24 × 21 =
17. 17.503 × 502 =
18. 18.306 × 301 =
19. 19.41 × 43 =
20. 20.46 × 49 =
21. 21.208 × 207 =
22. 22.495 × 495 =
23. 23.53 × 51 =
24. 24.31 × 31 =
25. 25.62 × 61 =
26. 26.395 × 399 =
27. 27.58 × 58 =
28. 28.195 × 198 =
29. 29.66 × 69 =
30. 30.27 × 26 =
31. 31.39 × 39 =
32. 32.199 × 195 =
33. 33.21 × 24 =
34. 34.499 × 496 =
35. 35.503 × 502 =
36. 36.77 × 78 =
37. 37.89 × 89 =
38. 38.23 × 21 =
39. 39.601 × 607 =
40. 40.43 × 44 =

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