Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 884 · 40 questions

The fast method (Shift both): How much makes the second number round? 68 needs 2 to make 70. Add that amount to BOTH numbers. Take away the round number.

1. 1.414 − 39 =
2. 2.589 − 98 =
3. 3.520 − 96 =
4. 4.400 − 66 =
5. 5.187 − 17 =
6. 6.426 − 18 =
7. 7.349 − 27 =
8. 8.336 − 98 =
9. 9.326 − 86 =
10. 10.172 − 78 =
11. 11.152 − 46 =
12. 12.539 − 68 =
13. 13.412 − 79 =
14. 14.473 − 27 =
15. 15.171 − 99 =
16. 16.443 − 86 =
17. 17.579 − 36 =
18. 18.99 − 87 =
19. 19.593 − 96 =
20. 20.151 − 26 =
21. 21.85 − 26 =
22. 22.466 − 37 =
23. 23.171 − 77 =
24. 24.439 − 16 =
25. 25.158 − 59 =
26. 26.569 − 99 =
27. 27.75 − 47 =
28. 28.326 − 18 =
29. 29.357 − 67 =
30. 30.458 − 67 =
31. 31.543 − 58 =
32. 32.114 − 98 =
33. 33.318 − 26 =
34. 34.199 − 58 =
35. 35.490 − 87 =
36. 36.331 − 39 =
37. 37.431 − 28 =
38. 38.166 − 66 =
39. 39.361 − 88 =
40. 40.290 − 19 =

Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths