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
- 1.69 − 56 =
- 2.352 − 97 =
- 3.62 − 48 =
- 4.589 − 59 =
- 5.445 − 67 =
- 6.388 − 19 =
- 7.196 − 17 =
- 8.136 − 99 =
- 9.378 − 16 =
- 10.108 − 59 =
- 11.421 − 76 =
- 12.383 − 59 =
- 13.58 − 37 =
- 14.508 − 57 =
- 15.412 − 69 =
- 16.375 − 88 =
- 17.297 − 37 =
- 18.360 − 39 =
- 19.77 − 66 =
- 20.113 − 38 =
- 21.95 − 78 =
- 22.226 − 26 =
- 23.362 − 39 =
- 24.200 − 99 =
- 25.480 − 69 =
- 26.64 − 29 =
- 27.513 − 67 =
- 28.228 − 97 =
- 29.310 − 57 =
- 30.59 − 46 =
- 31.227 − 89 =
- 32.429 − 86 =
- 33.419 − 68 =
- 34.533 − 96 =
- 35.350 − 46 =
- 36.549 − 76 =
- 37.544 − 69 =
- 38.320 − 28 =
- 39.98 − 17 =
- 40.176 − 99 =
Answer key
- 13
- 255
- 14
- 530
- 378
- 369
- 179
- 37
- 362
- 49
- 345
- 324
- 21
- 451
- 343
- 287
- 260
- 321
- 11
- 75
- 17
- 200
- 323
- 101
- 411
- 35
- 446
- 131
- 253
- 13
- 138
- 343
- 351
- 437
- 304
- 473
- 475
- 292
- 81
- 77
Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths