Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 1 · 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. 1.79 × 79 =
2. 2.394 × 394 =
3. 3.395 × 391 =
4. 4.491 × 493 =
5. 5.72 × 72 =
6. 6.19 × 16 =
7. 7.47 × 47 =
8. 8.194 × 194 =
9. 9.51 × 53 =
10. 10.33 × 33 =
11. 11.44 × 42 =
12. 12.197 × 199 =
13. 13.73 × 71 =
14. 14.39 × 38 =
15. 15.606 × 607 =
16. 16.595 × 597 =
17. 17.86 × 88 =
18. 18.502 × 505 =
19. 19.195 × 199 =
20. 20.304 × 301 =
21. 21.62 × 61 =
22. 22.24 × 22 =
23. 23.301 × 308 =
24. 24.36 × 38 =
25. 25.207 × 203 =
26. 26.297 × 297 =
27. 27.591 × 594 =
28. 28.601 × 602 =
29. 29.606 × 603 =
30. 30.94 × 94 =
31. 31.197 × 195 =
32. 32.201 × 201 =
33. 33.53 × 52 =
34. 34.68 × 68 =
35. 35.21 × 21 =
36. 36.494 × 498 =
37. 37.393 × 397 =
38. 38.61 × 62 =
39. 39.193 × 197 =
40. 40.397 × 396 =

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