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
- 1.524 − 480 =
- 2.230 − 185 =
- 3.74 − 31 =
- 4.1001 − 976 =
- 5.89 − 69 =
- 6.113 − 89 =
- 7.124 − 83 =
- 8.319 − 278 =
- 9.528 − 475 =
- 10.524 − 487 =
- 11.206 − 183 =
- 12.75 − 36 =
- 13.74 − 28 =
- 14.523 − 483 =
- 15.1027 − 996 =
- 16.1008 − 994 =
- 17.104 − 92 =
- 18.51 − 38 =
- 19.83 − 62 =
- 20.520 − 496 =
- 21.1010 − 996 =
- 22.55 − 33 =
- 23.53 − 35 =
- 24.63 − 29 =
- 25.97 − 74 =
- 26.103 − 58 =
- 27.125 − 87 =
- 28.128 − 90 =
- 29.514 − 480 =
- 30.303 − 294 =
- 31.61 − 28 =
- 32.201 − 189 =
- 33.223 − 197 =
- 34.104 − 76 =
- 35.115 − 92 =
- 36.1030 − 995 =
- 37.329 − 281 =
- 38.308 − 276 =
- 39.85 − 66 =
- 40.503 − 485 =
Answer key
- 44
- 45
- 43
- 25
- 20
- 24
- 41
- 41
- 53
- 37
- 23
- 39
- 46
- 40
- 31
- 14
- 12
- 13
- 21
- 24
- 14
- 22
- 18
- 34
- 23
- 45
- 38
- 38
- 34
- 9
- 33
- 12
- 26
- 28
- 23
- 35
- 48
- 32
- 19
- 18
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths