Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 2 · 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. 1.308 − 89 =
2. 2.488 − 48 =
3. 3.131 − 68 =
4. 4.512 − 28 =
5. 5.84 − 67 =
6. 6.347 − 49 =
7. 7.450 − 38 =
8. 8.300 − 19 =
9. 9.101 − 88 =
10. 10.94 − 68 =
11. 11.458 − 76 =
12. 12.439 − 79 =
13. 13.292 − 18 =
14. 14.155 − 56 =
15. 15.234 − 57 =
16. 16.513 − 49 =
17. 17.98 − 18 =
18. 18.293 − 67 =
19. 19.296 − 97 =
20. 20.138 − 76 =
21. 21.368 − 59 =
22. 22.271 − 89 =
23. 23.87 − 16 =
24. 24.119 − 36 =
25. 25.272 − 89 =
26. 26.115 − 79 =
27. 27.594 − 79 =
28. 28.65 − 19 =
29. 29.567 − 29 =
30. 30.228 − 99 =
31. 31.516 − 26 =
32. 32.220 − 39 =
33. 33.334 − 29 =
34. 34.310 − 27 =
35. 35.380 − 86 =
36. 36.517 − 47 =
37. 37.411 − 76 =
38. 38.265 − 56 =
39. 39.456 − 18 =
40. 40.119 − 26 =

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