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
- 1.584 − 19 =
- 2.444 − 86 =
- 3.353 − 19 =
- 4.525 − 77 =
- 5.529 − 79 =
- 6.325 − 17 =
- 7.317 − 97 =
- 8.331 − 56 =
- 9.336 − 16 =
- 10.258 − 49 =
- 11.213 − 28 =
- 12.596 − 88 =
- 13.522 − 67 =
- 14.182 − 89 =
- 15.532 − 47 =
- 16.256 − 86 =
- 17.328 − 16 =
- 18.89 − 66 =
- 19.302 − 96 =
- 20.552 − 26 =
- 21.398 − 58 =
- 22.512 − 18 =
- 23.225 − 96 =
- 24.387 − 28 =
- 25.180 − 49 =
- 26.167 − 79 =
- 27.357 − 97 =
- 28.342 − 57 =
- 29.413 − 46 =
- 30.138 − 86 =
- 31.182 − 69 =
- 32.207 − 16 =
- 33.123 − 17 =
- 34.357 − 97 =
- 35.203 − 58 =
- 36.96 − 57 =
- 37.296 − 37 =
- 38.183 − 87 =
- 39.563 − 96 =
- 40.96 − 78 =
Answer key
- 565
- 358
- 334
- 448
- 450
- 308
- 220
- 275
- 320
- 209
- 185
- 508
- 455
- 93
- 485
- 170
- 312
- 23
- 206
- 526
- 340
- 494
- 129
- 359
- 131
- 88
- 260
- 285
- 367
- 52
- 113
- 191
- 106
- 260
- 145
- 39
- 259
- 96
- 467
- 18
Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths