Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 198 · 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. 1.61 × 64 =
2. 2.19 × 19 =
3. 3.198 × 199 =
4. 4.38 × 37 =
5. 5.93 × 91 =
6. 6.197 × 196 =
7. 7.28 × 26 =
8. 8.306 × 304 =
9. 9.23 × 22 =
10. 10.29 × 28 =
11. 11.86 × 86 =
12. 12.27 × 26 =
13. 13.401 × 407 =
14. 14.74 × 72 =
15. 15.202 × 203 =
16. 16.194 × 195 =
17. 17.606 × 602 =
18. 18.21 × 21 =
19. 19.39 × 36 =
20. 20.599 × 599 =
21. 21.496 × 496 =
22. 22.33 × 33 =
23. 23.291 × 297 =
24. 24.43 × 42 =
25. 25.498 × 499 =
26. 26.504 × 504 =
27. 27.22 × 22 =
28. 28.493 × 491 =
29. 29.609 × 601 =
30. 30.66 × 69 =
31. 31.26 × 26 =
32. 32.193 × 192 =
33. 33.495 × 498 =
34. 34.209 × 206 =
35. 35.87 × 88 =
36. 36.19 × 17 =
37. 37.77 × 77 =
38. 38.194 × 196 =
39. 39.63 × 63 =
40. 40.399 × 399 =

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