Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 219 · 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. 1.115 − 66 =
2. 2.148 − 28 =
3. 3.275 − 18 =
4. 4.152 − 17 =
5. 5.271 − 46 =
6. 6.429 − 77 =
7. 7.85 − 79 =
8. 8.216 − 29 =
9. 9.192 − 58 =
10. 10.276 − 69 =
11. 11.368 − 89 =
12. 12.450 − 99 =
13. 13.284 − 36 =
14. 14.186 − 17 =
15. 15.515 − 26 =
16. 16.296 − 36 =
17. 17.381 − 97 =
18. 18.449 − 78 =
19. 19.181 − 48 =
20. 20.384 − 87 =
21. 21.549 − 28 =
22. 22.205 − 26 =
23. 23.90 − 57 =
24. 24.597 − 98 =
25. 25.295 − 19 =
26. 26.151 − 86 =
27. 27.195 − 79 =
28. 28.472 − 16 =
29. 29.412 − 89 =
30. 30.196 − 68 =
31. 31.405 − 69 =
32. 32.374 − 86 =
33. 33.538 − 79 =
34. 34.437 − 39 =
35. 35.592 − 77 =
36. 36.451 − 19 =
37. 37.281 − 49 =
38. 38.509 − 86 =
39. 39.559 − 79 =
40. 40.506 − 17 =

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