Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 856 · 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. 1.396 × 398 =
2. 2.83 × 84 =
3. 3.78 × 76 =
4. 4.604 × 609 =
5. 5.61 × 64 =
6. 6.593 × 594 =
7. 7.24 × 22 =
8. 8.398 × 393 =
9. 9.77 × 79 =
10. 10.393 × 397 =
11. 11.598 × 597 =
12. 12.394 × 392 =
13. 13.51 × 51 =
14. 14.394 × 398 =
15. 15.29 × 28 =
16. 16.78 × 79 =
17. 17.37 × 38 =
18. 18.93 × 94 =
19. 19.297 × 291 =
20. 20.61 × 64 =
21. 21.193 × 198 =
22. 22.294 × 297 =
23. 23.399 × 393 =
24. 24.74 × 72 =
25. 25.57 × 59 =
26. 26.37 × 38 =
27. 27.74 × 71 =
28. 28.209 × 206 =
29. 29.56 × 57 =
30. 30.42 × 41 =
31. 31.395 × 392 =
32. 32.297 × 299 =
33. 33.64 × 62 =
34. 34.192 × 191 =
35. 35.18 × 18 =
36. 36.91 × 94 =
37. 37.293 × 297 =
38. 38.83 × 83 =
39. 39.18 × 17 =
40. 40.87 × 88 =

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