Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 470 · 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. 1.586 − 78 =
2. 2.373 − 37 =
3. 3.393 − 79 =
4. 4.160 − 66 =
5. 5.250 − 37 =
6. 6.599 − 97 =
7. 7.445 − 88 =
8. 8.560 − 79 =
9. 9.339 − 68 =
10. 10.284 − 87 =
11. 11.125 − 56 =
12. 12.221 − 46 =
13. 13.471 − 66 =
14. 14.504 − 69 =
15. 15.540 − 17 =
16. 16.505 − 36 =
17. 17.216 − 17 =
18. 18.121 − 58 =
19. 19.206 − 56 =
20. 20.530 − 49 =
21. 21.478 − 57 =
22. 22.536 − 99 =
23. 23.150 − 78 =
24. 24.165 − 37 =
25. 25.275 − 58 =
26. 26.491 − 89 =
27. 27.294 − 28 =
28. 28.549 − 36 =
29. 29.591 − 28 =
30. 30.319 − 29 =
31. 31.179 − 29 =
32. 32.72 − 37 =
33. 33.320 − 27 =
34. 34.119 − 86 =
35. 35.366 − 78 =
36. 36.315 − 38 =
37. 37.123 − 37 =
38. 38.335 − 96 =
39. 39.137 − 38 =
40. 40.415 − 46 =

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