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
- 1.174 − 49 =
- 2.248 − 56 =
- 3.494 − 86 =
- 4.214 − 19 =
- 5.374 − 89 =
- 6.107 − 16 =
- 7.506 − 99 =
- 8.141 − 49 =
- 9.116 − 49 =
- 10.341 − 47 =
- 11.188 − 67 =
- 12.559 − 26 =
- 13.575 − 88 =
- 14.313 − 16 =
- 15.149 − 97 =
- 16.518 − 47 =
- 17.563 − 36 =
- 18.251 − 99 =
- 19.479 − 48 =
- 20.527 − 16 =
- 21.411 − 26 =
- 22.596 − 99 =
- 23.518 − 76 =
- 24.408 − 99 =
- 25.436 − 56 =
- 26.479 − 29 =
- 27.145 − 76 =
- 28.401 − 29 =
- 29.223 − 49 =
- 30.115 − 17 =
- 31.479 − 66 =
- 32.557 − 48 =
- 33.101 − 29 =
- 34.590 − 56 =
- 35.183 − 16 =
- 36.67 − 19 =
- 37.489 − 58 =
- 38.392 − 58 =
- 39.218 − 28 =
- 40.361 − 56 =
Answer key
- 125
- 192
- 408
- 195
- 285
- 91
- 407
- 92
- 67
- 294
- 121
- 533
- 487
- 297
- 52
- 471
- 527
- 152
- 431
- 511
- 385
- 497
- 442
- 309
- 380
- 450
- 69
- 372
- 174
- 98
- 413
- 509
- 72
- 534
- 167
- 48
- 431
- 334
- 190
- 305
Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths