Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 708 · 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. 1.77 × 79 =
2. 2.399 × 395 =
3. 3.201 × 204 =
4. 4.53 × 53 =
5. 5.26 × 28 =
6. 6.48 × 49 =
7. 7.73 × 71 =
8. 8.294 × 299 =
9. 9.207 × 209 =
10. 10.599 × 592 =
11. 11.302 × 309 =
12. 12.46 × 47 =
13. 13.197 × 192 =
14. 14.307 × 304 =
15. 15.16 × 19 =
16. 16.47 × 46 =
17. 17.195 × 194 =
18. 18.48 × 49 =
19. 19.607 × 609 =
20. 20.83 × 84 =
21. 21.203 × 201 =
22. 22.72 × 74 =
23. 23.81 × 81 =
24. 24.194 × 195 =
25. 25.397 × 395 =
26. 26.198 × 192 =
27. 27.207 × 204 =
28. 28.69 × 69 =
29. 29.26 × 29 =
30. 30.193 × 195 =
31. 31.91 × 91 =
32. 32.38 × 38 =
33. 33.93 × 93 =
34. 34.88 × 88 =
35. 35.62 × 63 =
36. 36.298 × 295 =
37. 37.73 × 73 =
38. 38.88 × 86 =
39. 39.605 × 605 =
40. 40.28 × 28 =

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