Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 335 · 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. 1.469 − 38 =
2. 2.564 − 66 =
3. 3.472 − 28 =
4. 4.494 − 47 =
5. 5.158 − 46 =
6. 6.475 − 89 =
7. 7.592 − 29 =
8. 8.510 − 96 =
9. 9.263 − 66 =
10. 10.249 − 98 =
11. 11.433 − 77 =
12. 12.178 − 89 =
13. 13.427 − 27 =
14. 14.280 − 38 =
15. 15.516 − 99 =
16. 16.77 − 29 =
17. 17.536 − 47 =
18. 18.440 − 56 =
19. 19.445 − 67 =
20. 20.269 − 68 =
21. 21.116 − 88 =
22. 22.563 − 38 =
23. 23.115 − 76 =
24. 24.352 − 59 =
25. 25.387 − 86 =
26. 26.273 − 59 =
27. 27.82 − 28 =
28. 28.58 − 29 =
29. 29.354 − 86 =
30. 30.485 − 29 =
31. 31.258 − 87 =
32. 32.304 − 36 =
33. 33.144 − 47 =
34. 34.131 − 17 =
35. 35.583 − 67 =
36. 36.452 − 18 =
37. 37.316 − 56 =
38. 38.257 − 29 =
39. 39.326 − 19 =
40. 40.139 − 37 =

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