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
- 1.60 − 34 =
- 2.316 − 289 =
- 3.321 − 278 =
- 4.52 − 32 =
- 5.205 − 192 =
- 6.222 − 192 =
- 7.111 − 93 =
- 8.54 − 36 =
- 9.521 − 487 =
- 10.1019 − 980 =
- 11.530 − 497 =
- 12.57 − 41 =
- 13.527 − 493 =
- 14.105 − 91 =
- 15.83 − 67 =
- 16.201 − 184 =
- 17.103 − 87 =
- 18.78 − 44 =
- 19.66 − 27 =
- 20.73 − 28 =
- 21.319 − 297 =
- 22.101 − 65 =
- 23.101 − 77 =
- 24.55 − 34 =
- 25.69 − 26 =
- 26.202 − 195 =
- 27.113 − 90 =
- 28.110 − 67 =
- 29.1008 − 976 =
- 30.312 − 292 =
- 31.1028 − 989 =
- 32.325 − 296 =
- 33.104 − 92 =
- 34.227 − 196 =
- 35.70 − 46 =
- 36.1010 − 976 =
- 37.109 − 85 =
- 38.205 − 178 =
- 39.530 − 492 =
- 40.1016 − 980 =
Answer key
- 26
- 27
- 43
- 20
- 13
- 30
- 18
- 18
- 34
- 39
- 33
- 16
- 34
- 14
- 16
- 17
- 16
- 34
- 39
- 45
- 22
- 36
- 24
- 21
- 43
- 7
- 23
- 43
- 32
- 20
- 39
- 29
- 12
- 31
- 24
- 34
- 24
- 27
- 38
- 36
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths