Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 33 · 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. 1.78 × 79 =
2. 2.297 × 291 =
3. 3.598 × 593 =
4. 4.62 × 61 =
5. 5.196 × 192 =
6. 6.399 × 397 =
7. 7.304 × 306 =
8. 8.307 × 307 =
9. 9.56 × 58 =
10. 10.29 × 29 =
11. 11.208 × 202 =
12. 12.197 × 197 =
13. 13.74 × 72 =
14. 14.94 × 93 =
15. 15.78 × 76 =
16. 16.304 × 301 =
17. 17.406 × 406 =
18. 18.195 × 194 =
19. 19.74 × 72 =
20. 20.395 × 396 =
21. 21.36 × 38 =
22. 22.391 × 398 =
23. 23.601 × 609 =
24. 24.498 × 495 =
25. 25.63 × 61 =
26. 26.293 × 297 =
27. 27.198 × 193 =
28. 28.49 × 46 =
29. 29.28 × 26 =
30. 30.506 × 508 =
31. 31.604 × 606 =
32. 32.601 × 605 =
33. 33.497 × 495 =
34. 34.597 × 591 =
35. 35.47 × 47 =
36. 36.598 × 592 =
37. 37.196 × 192 =
38. 38.298 × 295 =
39. 39.34 × 34 =
40. 40.397 × 393 =

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