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
- 1.228 − 186 =
- 2.116 − 94 =
- 3.55 − 38 =
- 4.202 − 198 =
- 5.1016 − 997 =
- 6.81 − 68 =
- 7.1021 − 995 =
- 8.1027 − 991 =
- 9.81 − 71 =
- 10.1029 − 998 =
- 11.512 − 476 =
- 12.301 − 295 =
- 13.230 − 195 =
- 14.1030 − 982 =
- 15.1019 − 993 =
- 16.529 − 497 =
- 17.88 − 58 =
- 18.213 − 189 =
- 19.126 − 77 =
- 20.110 − 89 =
- 21.528 − 498 =
- 22.310 − 294 =
- 23.228 − 184 =
- 24.127 − 93 =
- 25.103 − 80 =
- 26.59 − 35 =
- 27.510 − 490 =
- 28.115 − 90 =
- 29.212 − 190 =
- 30.1008 − 990 =
- 31.210 − 195 =
- 32.526 − 476 =
- 33.61 − 34 =
- 34.523 − 493 =
- 35.1014 − 984 =
- 36.72 − 25 =
- 37.101 − 68 =
- 38.501 − 498 =
- 39.303 − 285 =
- 40.1005 − 982 =
Answer key
- 42
- 22
- 17
- 4
- 19
- 13
- 26
- 36
- 10
- 31
- 36
- 6
- 35
- 48
- 26
- 32
- 30
- 24
- 49
- 21
- 30
- 16
- 44
- 34
- 23
- 24
- 20
- 25
- 22
- 18
- 15
- 50
- 27
- 30
- 30
- 47
- 33
- 3
- 18
- 23
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths