Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 354 · 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. 1.112 − 46 =
2. 2.498 − 87 =
3. 3.596 − 76 =
4. 4.526 − 96 =
5. 5.528 − 16 =
6. 6.120 − 67 =
7. 7.213 − 37 =
8. 8.440 − 17 =
9. 9.452 − 19 =
10. 10.236 − 87 =
11. 11.378 − 89 =
12. 12.232 − 99 =
13. 13.139 − 18 =
14. 14.178 − 96 =
15. 15.529 − 98 =
16. 16.283 − 28 =
17. 17.550 − 26 =
18. 18.429 − 86 =
19. 19.539 − 28 =
20. 20.268 − 49 =
21. 21.171 − 29 =
22. 22.305 − 16 =
23. 23.582 − 39 =
24. 24.592 − 26 =
25. 25.537 − 69 =
26. 26.307 − 77 =
27. 27.415 − 76 =
28. 28.238 − 88 =
29. 29.113 − 59 =
30. 30.498 − 68 =
31. 31.355 − 28 =
32. 32.217 − 38 =
33. 33.380 − 17 =
34. 34.231 − 96 =
35. 35.397 − 98 =
36. 36.211 − 77 =
37. 37.534 − 97 =
38. 38.490 − 76 =
39. 39.384 − 76 =
40. 40.410 − 36 =

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