Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 705 · 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. 1.397 × 392 =
2. 2.47 × 46 =
3. 3.52 × 53 =
4. 4.16 × 18 =
5. 5.69 × 68 =
6. 6.49 × 47 =
7. 7.398 × 392 =
8. 8.505 × 508 =
9. 9.86 × 86 =
10. 10.199 × 198 =
11. 11.301 × 306 =
12. 12.292 × 297 =
13. 13.204 × 207 =
14. 14.397 × 398 =
15. 15.606 × 605 =
16. 16.72 × 72 =
17. 17.201 × 202 =
18. 18.193 × 195 =
19. 19.54 × 51 =
20. 20.89 × 87 =
21. 21.33 × 32 =
22. 22.61 × 61 =
23. 23.58 × 56 =
24. 24.32 × 34 =
25. 25.394 × 397 =
26. 26.593 × 593 =
27. 27.399 × 398 =
28. 28.493 × 494 =
29. 29.606 × 601 =
30. 30.295 × 298 =
31. 31.603 × 605 =
32. 32.302 × 302 =
33. 33.193 × 197 =
34. 34.63 × 61 =
35. 35.194 × 198 =
36. 36.58 × 59 =
37. 37.502 × 503 =
38. 38.292 × 293 =
39. 39.204 × 207 =
40. 40.18 × 19 =

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