Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 612 · 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. 1.297 × 298 =
2. 2.394 × 391 =
3. 3.401 × 407 =
4. 4.402 × 403 =
5. 5.397 × 398 =
6. 6.68 × 66 =
7. 7.393 × 397 =
8. 8.48 × 48 =
9. 9.298 × 299 =
10. 10.193 × 199 =
11. 11.195 × 197 =
12. 12.202 × 207 =
13. 13.594 × 597 =
14. 14.502 × 502 =
15. 15.64 × 64 =
16. 16.42 × 44 =
17. 17.297 × 297 =
18. 18.208 × 209 =
19. 19.31 × 32 =
20. 20.605 × 603 =
21. 21.92 × 91 =
22. 22.27 × 29 =
23. 23.195 × 198 =
24. 24.94 × 91 =
25. 25.41 × 42 =
26. 26.597 × 593 =
27. 27.398 × 397 =
28. 28.59 × 57 =
29. 29.58 × 58 =
30. 30.199 × 195 =
31. 31.77 × 77 =
32. 32.501 × 509 =
33. 33.78 × 77 =
34. 34.92 × 91 =
35. 35.46 × 47 =
36. 36.499 × 498 =
37. 37.197 × 193 =
38. 38.61 × 63 =
39. 39.42 × 43 =
40. 40.192 × 197 =

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