Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 864 · 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. 1.68 × 69 =
2. 2.49 × 47 =
3. 3.502 × 505 =
4. 4.31 × 31 =
5. 5.407 × 403 =
6. 6.293 × 293 =
7. 7.599 × 591 =
8. 8.297 × 297 =
9. 9.34 × 34 =
10. 10.58 × 56 =
11. 11.603 × 608 =
12. 12.71 × 74 =
13. 13.76 × 76 =
14. 14.607 × 608 =
15. 15.42 × 41 =
16. 16.23 × 22 =
17. 17.299 × 293 =
18. 18.28 × 26 =
19. 19.398 × 399 =
20. 20.392 × 393 =
21. 21.34 × 33 =
22. 22.86 × 88 =
23. 23.57 × 59 =
24. 24.44 × 41 =
25. 25.503 × 502 =
26. 26.298 × 298 =
27. 27.41 × 44 =
28. 28.192 × 192 =
29. 29.31 × 33 =
30. 30.82 × 84 =
31. 31.48 × 49 =
32. 32.69 × 68 =
33. 33.73 × 71 =
34. 34.407 × 408 =
35. 35.304 × 303 =
36. 36.203 × 201 =
37. 37.602 × 607 =
38. 38.88 × 88 =
39. 39.197 × 199 =
40. 40.502 × 506 =

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