Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 136 · 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. 1.309 − 49 =
2. 2.274 − 67 =
3. 3.510 − 47 =
4. 4.555 − 36 =
5. 5.301 − 78 =
6. 6.284 − 27 =
7. 7.560 − 36 =
8. 8.161 − 48 =
9. 9.462 − 59 =
10. 10.125 − 88 =
11. 11.146 − 96 =
12. 12.190 − 29 =
13. 13.420 − 56 =
14. 14.175 − 97 =
15. 15.232 − 37 =
16. 16.160 − 86 =
17. 17.167 − 66 =
18. 18.210 − 16 =
19. 19.59 − 17 =
20. 20.266 − 27 =
21. 21.63 − 47 =
22. 22.573 − 17 =
23. 23.79 − 28 =
24. 24.171 − 58 =
25. 25.92 − 37 =
26. 26.416 − 38 =
27. 27.235 − 36 =
28. 28.244 − 57 =
29. 29.63 − 58 =
30. 30.472 − 19 =
31. 31.326 − 47 =
32. 32.254 − 97 =
33. 33.208 − 99 =
34. 34.386 − 29 =
35. 35.165 − 97 =
36. 36.497 − 86 =
37. 37.442 − 66 =
38. 38.290 − 56 =
39. 39.339 − 88 =
40. 40.92 − 69 =

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