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
- 1.226 − 188 =
- 2.1021 − 995 =
- 3.526 − 493 =
- 4.110 − 73 =
- 5.312 − 282 =
- 6.323 − 281 =
- 7.209 − 198 =
- 8.64 − 25 =
- 9.67 − 44 =
- 10.1025 − 991 =
- 11.79 − 37 =
- 12.1005 − 982 =
- 13.52 − 31 =
- 14.92 − 77 =
- 15.104 − 78 =
- 16.1016 − 978 =
- 17.80 − 25 =
- 18.1009 − 989 =
- 19.1014 − 994 =
- 20.105 − 77 =
- 21.104 − 76 =
- 22.125 − 91 =
- 23.86 − 62 =
- 24.101 − 92 =
- 25.57 − 37 =
- 26.107 − 78 =
- 27.89 − 58 =
- 28.104 − 88 =
- 29.69 − 47 =
- 30.52 − 47 =
- 31.104 − 79 =
- 32.324 − 293 =
- 33.212 − 191 =
- 34.55 − 37 =
- 35.312 − 278 =
- 36.119 − 97 =
- 37.516 − 488 =
- 38.205 − 196 =
- 39.327 − 276 =
- 40.79 − 47 =
Answer key
- 38
- 26
- 33
- 37
- 30
- 42
- 11
- 39
- 23
- 34
- 42
- 23
- 21
- 15
- 26
- 38
- 55
- 20
- 20
- 28
- 28
- 34
- 24
- 9
- 20
- 29
- 31
- 16
- 22
- 5
- 25
- 31
- 21
- 18
- 34
- 22
- 28
- 9
- 51
- 32
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths