Subtraction by Counting Up Worksheet
How to do it in your head (Count up): Start at the smaller number. Jump to the next ten, then the next hundred, then to the bigger number. Add up all the jumps.
NameDateTime takenScore ___ / 40
- 1.74 − 46 =
- 2.52 − 41 =
- 3.330 − 292 =
- 4.111 − 92 =
- 5.101 − 95 =
- 6.54 − 25 =
- 7.1007 − 989 =
- 8.312 − 278 =
- 9.82 − 68 =
- 10.89 − 67 =
- 11.115 − 76 =
- 12.86 − 57 =
- 13.213 − 175 =
- 14.1013 − 997 =
- 15.504 − 489 =
- 16.1019 − 997 =
- 17.525 − 478 =
- 18.54 − 35 =
- 19.304 − 291 =
- 20.230 − 187 =
- 21.224 − 184 =
- 22.108 − 77 =
- 23.54 − 42 =
- 24.54 − 45 =
- 25.104 − 76 =
- 26.1007 − 996 =
- 27.109 − 98 =
- 28.509 − 481 =
- 29.524 − 491 =
- 30.308 − 275 =
- 31.501 − 476 =
- 32.88 − 70 =
- 33.78 − 32 =
- 34.119 − 92 =
- 35.63 − 47 =
- 36.55 − 25 =
- 37.96 − 62 =
- 38.515 − 488 =
- 39.98 − 76 =
- 40.94 − 63 =
Answer key
- 28
- 11
- 38
- 19
- 6
- 29
- 18
- 34
- 14
- 22
- 39
- 29
- 38
- 16
- 15
- 22
- 47
- 19
- 13
- 43
- 40
- 31
- 12
- 9
- 28
- 11
- 11
- 28
- 33
- 33
- 25
- 18
- 46
- 27
- 16
- 30
- 34
- 27
- 22
- 31
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths