Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 156 · 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. 1.83 × 82 =
2. 2.599 × 596 =
3. 3.609 × 606 =
4. 4.54 × 51 =
5. 5.42 × 42 =
6. 6.69 × 67 =
7. 7.87 × 86 =
8. 8.42 × 43 =
9. 9.199 × 197 =
10. 10.309 × 303 =
11. 11.33 × 33 =
12. 12.37 × 37 =
13. 13.84 × 84 =
14. 14.62 × 64 =
15. 15.408 × 402 =
16. 16.495 × 494 =
17. 17.29 × 28 =
18. 18.69 × 68 =
19. 19.209 × 202 =
20. 20.191 × 198 =
21. 21.71 × 73 =
22. 22.67 × 67 =
23. 23.23 × 24 =
24. 24.409 × 402 =
25. 25.401 × 408 =
26. 26.199 × 195 =
27. 27.66 × 67 =
28. 28.23 × 24 =
29. 29.69 × 68 =
30. 30.301 × 304 =
31. 31.208 × 205 =
32. 32.193 × 195 =
33. 33.33 × 34 =
34. 34.197 × 193 =
35. 35.494 × 492 =
36. 36.495 × 496 =
37. 37.508 × 507 =
38. 38.496 × 491 =
39. 39.198 × 196 =
40. 40.494 × 494 =

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