Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 279 · 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. 1.17 × 17 =
2. 2.66 × 67 =
3. 3.391 × 392 =
4. 4.493 × 494 =
5. 5.299 × 296 =
6. 6.57 × 58 =
7. 7.51 × 52 =
8. 8.26 × 28 =
9. 9.392 × 398 =
10. 10.77 × 76 =
11. 11.192 × 197 =
12. 12.73 × 73 =
13. 13.23 × 21 =
14. 14.206 × 202 =
15. 15.405 × 403 =
16. 16.302 × 307 =
17. 17.93 × 94 =
18. 18.209 × 203 =
19. 19.58 × 56 =
20. 20.33 × 31 =
21. 21.396 × 399 =
22. 22.69 × 69 =
23. 23.17 × 16 =
24. 24.34 × 33 =
25. 25.21 × 24 =
26. 26.205 × 202 =
27. 27.67 × 69 =
28. 28.69 × 69 =
29. 29.297 × 296 =
30. 30.308 × 307 =
31. 31.18 × 16 =
32. 32.503 × 507 =
33. 33.78 × 79 =
34. 34.301 × 308 =
35. 35.298 × 291 =
36. 36.306 × 306 =
37. 37.66 × 66 =
38. 38.19 × 19 =
39. 39.401 × 402 =
40. 40.303 × 301 =

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