Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 117 · 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. 1.62 × 64 =
2. 2.61 × 61 =
3. 3.209 × 207 =
4. 4.22 × 23 =
5. 5.193 × 191 =
6. 6.399 × 398 =
7. 7.86 × 86 =
8. 8.206 × 202 =
9. 9.56 × 56 =
10. 10.23 × 21 =
11. 11.77 × 77 =
12. 12.197 × 191 =
13. 13.72 × 71 =
14. 14.63 × 64 =
15. 15.408 × 401 =
16. 16.37 × 39 =
17. 17.92 × 93 =
18. 18.395 × 396 =
19. 19.37 × 38 =
20. 20.302 × 304 =
21. 21.17 × 16 =
22. 22.52 × 51 =
23. 23.34 × 32 =
24. 24.203 × 208 =
25. 25.203 × 206 =
26. 26.29 × 27 =
27. 27.53 × 54 =
28. 28.298 × 299 =
29. 29.403 × 401 =
30. 30.52 × 51 =
31. 31.68 × 69 =
32. 32.392 × 395 =
33. 33.202 × 201 =
34. 34.507 × 503 =
35. 35.502 × 506 =
36. 36.62 × 61 =
37. 37.43 × 41 =
38. 38.303 × 308 =
39. 39.18 × 18 =
40. 40.89 × 88 =

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