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
- 1.234 − 99 =
- 2.152 − 26 =
- 3.207 − 18 =
- 4.323 − 96 =
- 5.423 − 99 =
- 6.159 − 17 =
- 7.505 − 17 =
- 8.119 − 76 =
- 9.357 − 19 =
- 10.71 − 48 =
- 11.383 − 66 =
- 12.161 − 67 =
- 13.206 − 27 =
- 14.275 − 16 =
- 15.63 − 49 =
- 16.365 − 27 =
- 17.90 − 69 =
- 18.123 − 36 =
- 19.277 − 38 =
- 20.97 − 88 =
- 21.213 − 89 =
- 22.65 − 56 =
- 23.245 − 68 =
- 24.293 − 57 =
- 25.255 − 38 =
- 26.319 − 68 =
- 27.256 − 29 =
- 28.507 − 87 =
- 29.425 − 16 =
- 30.136 − 58 =
- 31.470 − 86 =
- 32.417 − 96 =
- 33.232 − 37 =
- 34.589 − 76 =
- 35.343 − 56 =
- 36.523 − 47 =
- 37.52 − 47 =
- 38.167 − 68 =
- 39.315 − 96 =
- 40.553 − 87 =
Answer key
- 135
- 126
- 189
- 227
- 324
- 142
- 488
- 43
- 338
- 23
- 317
- 94
- 179
- 259
- 14
- 338
- 21
- 87
- 239
- 9
- 124
- 9
- 177
- 236
- 217
- 251
- 227
- 420
- 409
- 78
- 384
- 321
- 195
- 513
- 287
- 476
- 5
- 99
- 219
- 466
Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths