Subtraction Trick Worksheet

Speed calculation lesson 3: Same-change subtraction · Set 914 · 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. 1.310 − 36 =
2. 2.283 − 57 =
3. 3.178 − 67 =
4. 4.144 − 29 =
5. 5.289 − 28 =
6. 6.522 − 86 =
7. 7.527 − 88 =
8. 8.384 − 56 =
9. 9.407 − 16 =
10. 10.541 − 56 =
11. 11.494 − 29 =
12. 12.96 − 68 =
13. 13.343 − 97 =
14. 14.140 − 49 =
15. 15.368 − 86 =
16. 16.64 − 36 =
17. 17.153 − 99 =
18. 18.262 − 26 =
19. 19.576 − 38 =
20. 20.514 − 28 =
21. 21.81 − 56 =
22. 22.503 − 99 =
23. 23.199 − 37 =
24. 24.528 − 49 =
25. 25.369 − 49 =
26. 26.170 − 46 =
27. 27.533 − 68 =
28. 28.336 − 26 =
29. 29.451 − 79 =
30. 30.184 − 76 =
31. 31.114 − 27 =
32. 32.193 − 39 =
33. 33.449 − 39 =
34. 34.153 − 36 =
35. 35.562 − 98 =
36. 36.152 − 26 =
37. 37.414 − 58 =
38. 38.441 − 47 =
39. 39.562 − 57 =
40. 40.494 − 97 =

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