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
- 1.463 − 66 =
- 2.223 − 17 =
- 3.380 − 99 =
- 4.186 − 38 =
- 5.141 − 98 =
- 6.357 − 26 =
- 7.284 − 48 =
- 8.587 − 59 =
- 9.554 − 68 =
- 10.545 − 37 =
- 11.563 − 98 =
- 12.511 − 37 =
- 13.71 − 17 =
- 14.124 − 17 =
- 15.402 − 27 =
- 16.579 − 56 =
- 17.503 − 97 =
- 18.307 − 37 =
- 19.560 − 69 =
- 20.310 − 67 =
- 21.572 − 78 =
- 22.507 − 89 =
- 23.181 − 39 =
- 24.400 − 88 =
- 25.548 − 77 =
- 26.323 − 26 =
- 27.404 − 58 =
- 28.394 − 26 =
- 29.389 − 88 =
- 30.292 − 56 =
- 31.282 − 98 =
- 32.537 − 38 =
- 33.585 − 77 =
- 34.289 − 19 =
- 35.522 − 36 =
- 36.538 − 86 =
- 37.242 − 69 =
- 38.209 − 69 =
- 39.383 − 99 =
- 40.334 − 37 =
Answer key
- 397
- 206
- 281
- 148
- 43
- 331
- 236
- 528
- 486
- 508
- 465
- 474
- 54
- 107
- 375
- 523
- 406
- 270
- 491
- 243
- 494
- 418
- 142
- 312
- 471
- 297
- 346
- 368
- 301
- 236
- 184
- 499
- 508
- 270
- 486
- 452
- 173
- 140
- 284
- 297
Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths