Subtraction Trick Worksheet
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.
NameDateTime takenScore ___ / 40
- 1.298 − 36 =
- 2.125 − 48 =
- 3.157 − 28 =
- 4.467 − 79 =
- 5.461 − 18 =
- 6.354 − 47 =
- 7.227 − 37 =
- 8.236 − 58 =
- 9.322 − 39 =
- 10.518 − 58 =
- 11.69 − 27 =
- 12.440 − 27 =
- 13.522 − 38 =
- 14.156 − 39 =
- 15.577 − 78 =
- 16.567 − 36 =
- 17.343 − 37 =
- 18.175 − 37 =
- 19.543 − 76 =
- 20.197 − 79 =
- 21.280 − 16 =
- 22.115 − 87 =
- 23.430 − 48 =
- 24.178 − 26 =
- 25.325 − 17 =
- 26.578 − 57 =
- 27.431 − 67 =
- 28.477 − 77 =
- 29.542 − 68 =
- 30.333 − 47 =
- 31.306 − 17 =
- 32.180 − 67 =
- 33.585 − 78 =
- 34.165 − 58 =
- 35.287 − 19 =
- 36.156 − 29 =
- 37.269 − 79 =
- 38.310 − 69 =
- 39.133 − 77 =
- 40.453 − 37 =
Answer key
- 262
- 77
- 129
- 388
- 443
- 307
- 190
- 178
- 283
- 460
- 42
- 413
- 484
- 117
- 499
- 531
- 306
- 138
- 467
- 118
- 264
- 28
- 382
- 152
- 308
- 521
- 364
- 400
- 474
- 286
- 289
- 113
- 507
- 107
- 268
- 127
- 190
- 241
- 56
- 416
Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths