Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 380 · 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. 1.403 × 407 =
2. 2.94 × 93 =
3. 3.408 × 401 =
4. 4.392 × 397 =
5. 5.31 × 33 =
6. 6.47 × 48 =
7. 7.491 × 495 =
8. 8.394 × 399 =
9. 9.405 × 405 =
10. 10.402 × 409 =
11. 11.53 × 51 =
12. 12.36 × 36 =
13. 13.37 × 39 =
14. 14.76 × 79 =
15. 15.32 × 31 =
16. 16.398 × 395 =
17. 17.16 × 18 =
18. 18.505 × 507 =
19. 19.54 × 51 =
20. 20.28 × 26 =
21. 21.208 × 208 =
22. 22.39 × 38 =
23. 23.308 × 302 =
24. 24.17 × 19 =
25. 25.608 × 606 =
26. 26.395 × 395 =
27. 27.57 × 56 =
28. 28.591 × 596 =
29. 29.195 × 196 =
30. 30.57 × 58 =
31. 31.601 × 606 =
32. 32.493 × 495 =
33. 33.599 × 596 =
34. 34.501 × 501 =
35. 35.397 × 399 =
36. 36.18 × 16 =
37. 37.28 × 26 =
38. 38.298 × 299 =
39. 39.198 × 199 =
40. 40.301 × 309 =

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