Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 549 · 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. 1.81 − 18 =
2. 2.414 − 48 =
3. 3.405 − 69 =
4. 4.187 − 38 =
5. 5.320 − 96 =
6. 6.437 − 38 =
7. 7.153 − 56 =
8. 8.306 − 98 =
9. 9.115 − 57 =
10. 10.556 − 99 =
11. 11.187 − 48 =
12. 12.246 − 98 =
13. 13.110 − 78 =
14. 14.123 − 56 =
15. 15.296 − 27 =
16. 16.405 − 77 =
17. 17.266 − 79 =
18. 18.563 − 66 =
19. 19.119 − 98 =
20. 20.265 − 37 =
21. 21.118 − 59 =
22. 22.142 − 47 =
23. 23.322 − 18 =
24. 24.368 − 38 =
25. 25.449 − 26 =
26. 26.168 − 18 =
27. 27.343 − 57 =
28. 28.210 − 89 =
29. 29.235 − 86 =
30. 30.519 − 46 =
31. 31.521 − 96 =
32. 32.84 − 17 =
33. 33.186 − 88 =
34. 34.502 − 98 =
35. 35.94 − 49 =
36. 36.301 − 46 =
37. 37.333 − 67 =
38. 38.395 − 98 =
39. 39.434 − 48 =
40. 40.297 − 18 =

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