Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 615 · 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. 1.88 × 89 =
2. 2.599 × 591 =
3. 3.79 × 78 =
4. 4.86 × 86 =
5. 5.24 × 21 =
6. 6.44 × 44 =
7. 7.26 × 29 =
8. 8.58 × 59 =
9. 9.61 × 62 =
10. 10.402 × 406 =
11. 11.293 × 299 =
12. 12.26 × 26 =
13. 13.608 × 609 =
14. 14.198 × 197 =
15. 15.194 × 193 =
16. 16.39 × 39 =
17. 17.38 × 36 =
18. 18.62 × 63 =
19. 19.86 × 87 =
20. 20.53 × 51 =
21. 21.16 × 19 =
22. 22.23 × 21 =
23. 23.63 × 61 =
24. 24.54 × 51 =
25. 25.406 × 408 =
26. 26.298 × 292 =
27. 27.191 × 195 =
28. 28.593 × 595 =
29. 29.592 × 598 =
30. 30.307 × 302 =
31. 31.201 × 209 =
32. 32.89 × 86 =
33. 33.597 × 592 =
34. 34.38 × 39 =
35. 35.591 × 598 =
36. 36.51 × 54 =
37. 37.23 × 22 =
38. 38.192 × 191 =
39. 39.22 × 21 =
40. 40.58 × 59 =

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