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
- 1.402 − 26 =
- 2.142 − 88 =
- 3.382 − 36 =
- 4.231 − 87 =
- 5.82 − 46 =
- 6.579 − 99 =
- 7.591 − 37 =
- 8.211 − 57 =
- 9.219 − 28 =
- 10.316 − 38 =
- 11.530 − 18 =
- 12.153 − 89 =
- 13.458 − 87 =
- 14.102 − 67 =
- 15.58 − 29 =
- 16.167 − 76 =
- 17.511 − 28 =
- 18.287 − 16 =
- 19.482 − 26 =
- 20.458 − 46 =
- 21.384 − 79 =
- 22.538 − 36 =
- 23.488 − 28 =
- 24.327 − 16 =
- 25.150 − 96 =
- 26.292 − 27 =
- 27.214 − 67 =
- 28.88 − 57 =
- 29.515 − 99 =
- 30.61 − 46 =
- 31.75 − 48 =
- 32.323 − 39 =
- 33.203 − 18 =
- 34.207 − 38 =
- 35.256 − 56 =
- 36.311 − 89 =
- 37.389 − 58 =
- 38.256 − 17 =
- 39.189 − 36 =
- 40.374 − 18 =
Answer key
- 376
- 54
- 346
- 144
- 36
- 480
- 554
- 154
- 191
- 278
- 512
- 64
- 371
- 35
- 29
- 91
- 483
- 271
- 456
- 412
- 305
- 502
- 460
- 311
- 54
- 265
- 147
- 31
- 416
- 15
- 27
- 284
- 185
- 169
- 200
- 222
- 331
- 239
- 153
- 356
Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths