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
- 1.397 − 69 =
- 2.89 − 47 =
- 3.474 − 26 =
- 4.397 − 57 =
- 5.348 − 16 =
- 6.129 − 19 =
- 7.314 − 28 =
- 8.98 − 78 =
- 9.90 − 18 =
- 10.461 − 79 =
- 11.475 − 26 =
- 12.412 − 19 =
- 13.396 − 46 =
- 14.272 − 56 =
- 15.483 − 19 =
- 16.428 − 98 =
- 17.97 − 36 =
- 18.274 − 27 =
- 19.584 − 58 =
- 20.557 − 99 =
- 21.340 − 36 =
- 22.140 − 46 =
- 23.141 − 67 =
- 24.352 − 27 =
- 25.531 − 98 =
- 26.393 − 16 =
- 27.133 − 38 =
- 28.434 − 69 =
- 29.232 − 77 =
- 30.560 − 68 =
- 31.523 − 99 =
- 32.359 − 69 =
- 33.448 − 18 =
- 34.291 − 76 =
- 35.433 − 68 =
- 36.412 − 39 =
- 37.532 − 97 =
- 38.292 − 66 =
- 39.413 − 29 =
- 40.557 − 69 =
Answer key
- 328
- 42
- 448
- 340
- 332
- 110
- 286
- 20
- 72
- 382
- 449
- 393
- 350
- 216
- 464
- 330
- 61
- 247
- 526
- 458
- 304
- 94
- 74
- 325
- 433
- 377
- 95
- 365
- 155
- 492
- 424
- 290
- 430
- 215
- 365
- 373
- 435
- 226
- 384
- 488
Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths