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
- 1.112 − 76 =
- 2.95 − 58 =
- 3.96 − 77 =
- 4.224 − 179 =
- 5.515 − 492 =
- 6.59 − 37 =
- 7.307 − 294 =
- 8.58 − 40 =
- 9.108 − 87 =
- 10.69 − 37 =
- 11.506 − 488 =
- 12.94 − 63 =
- 13.78 − 35 =
- 14.61 − 31 =
- 15.209 − 195 =
- 16.98 − 77 =
- 17.122 − 86 =
- 18.107 − 83 =
- 19.108 − 62 =
- 20.118 − 91 =
- 21.207 − 193 =
- 22.319 − 277 =
- 23.64 − 42 =
- 24.1003 − 981 =
- 25.72 − 37 =
- 26.208 − 190 =
- 27.1019 − 997 =
- 28.213 − 178 =
- 29.327 − 295 =
- 30.220 − 182 =
- 31.103 − 73 =
- 32.507 − 482 =
- 33.91 − 75 =
- 34.1024 − 982 =
- 35.518 − 496 =
- 36.103 − 62 =
- 37.95 − 63 =
- 38.107 − 96 =
- 39.54 − 37 =
- 40.227 − 198 =
Answer key
- 36
- 37
- 19
- 45
- 23
- 22
- 13
- 18
- 21
- 32
- 18
- 31
- 43
- 30
- 14
- 21
- 36
- 24
- 46
- 27
- 14
- 42
- 22
- 22
- 35
- 18
- 22
- 35
- 32
- 38
- 30
- 25
- 16
- 42
- 22
- 41
- 32
- 11
- 17
- 29
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths