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
- 1.105 − 60 =
- 2.202 − 197 =
- 3.105 − 57 =
- 4.304 − 280 =
- 5.512 − 497 =
- 6.128 − 84 =
- 7.211 − 177 =
- 8.108 − 76 =
- 9.101 − 63 =
- 10.122 − 76 =
- 11.330 − 279 =
- 12.55 − 26 =
- 13.63 − 44 =
- 14.120 − 83 =
- 15.124 − 95 =
- 16.1019 − 984 =
- 17.302 − 280 =
- 18.510 − 494 =
- 19.123 − 78 =
- 20.1004 − 992 =
- 21.321 − 280 =
- 22.1015 − 991 =
- 23.508 − 498 =
- 24.101 − 78 =
- 25.84 − 60 =
- 26.305 − 286 =
- 27.125 − 77 =
- 28.1014 − 996 =
- 29.306 − 290 =
- 30.1007 − 976 =
- 31.1014 − 994 =
- 32.1022 − 998 =
- 33.79 − 26 =
- 34.318 − 294 =
- 35.117 − 95 =
- 36.119 − 81 =
- 37.104 − 80 =
- 38.117 − 85 =
- 39.97 − 57 =
- 40.221 − 176 =
Answer key
- 45
- 5
- 48
- 24
- 15
- 44
- 34
- 32
- 38
- 46
- 51
- 29
- 19
- 37
- 29
- 35
- 22
- 16
- 45
- 12
- 41
- 24
- 10
- 23
- 24
- 19
- 48
- 18
- 16
- 31
- 20
- 24
- 53
- 24
- 22
- 38
- 24
- 32
- 40
- 45
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths