Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 194 · 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. 1.88 − 38 =
2. 2.118 − 27 =
3. 3.214 − 76 =
4. 4.550 − 29 =
5. 5.406 − 89 =
6. 6.277 − 26 =
7. 7.92 − 79 =
8. 8.160 − 16 =
9. 9.119 − 77 =
10. 10.183 − 17 =
11. 11.451 − 67 =
12. 12.395 − 39 =
13. 13.234 − 57 =
14. 14.127 − 89 =
15. 15.438 − 38 =
16. 16.157 − 16 =
17. 17.378 − 28 =
18. 18.196 − 28 =
19. 19.325 − 16 =
20. 20.541 − 78 =
21. 21.273 − 79 =
22. 22.394 − 67 =
23. 23.513 − 77 =
24. 24.141 − 78 =
25. 25.538 − 26 =
26. 26.529 − 76 =
27. 27.327 − 86 =
28. 28.254 − 28 =
29. 29.202 − 76 =
30. 30.139 − 99 =
31. 31.181 − 88 =
32. 32.182 − 19 =
33. 33.322 − 18 =
34. 34.488 − 36 =
35. 35.594 − 69 =
36. 36.246 − 67 =
37. 37.93 − 67 =
38. 38.262 − 76 =
39. 39.474 − 89 =
40. 40.115 − 68 =

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