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
- 1.513 − 488 =
- 2.505 − 486 =
- 3.224 − 190 =
- 4.119 − 76 =
- 5.104 − 83 =
- 6.529 − 485 =
- 7.61 − 31 =
- 8.78 − 36 =
- 9.70 − 42 =
- 10.63 − 32 =
- 11.501 − 488 =
- 12.509 − 494 =
- 13.1030 − 987 =
- 14.210 − 179 =
- 15.523 − 490 =
- 16.92 − 63 =
- 17.87 − 72 =
- 18.1025 − 980 =
- 19.223 − 189 =
- 20.1010 − 991 =
- 21.67 − 26 =
- 22.228 − 191 =
- 23.1015 − 977 =
- 24.203 − 197 =
- 25.317 − 278 =
- 26.63 − 42 =
- 27.1022 − 988 =
- 28.523 − 497 =
- 29.73 − 44 =
- 30.54 − 48 =
- 31.520 − 494 =
- 32.70 − 40 =
- 33.56 − 43 =
- 34.56 − 32 =
- 35.102 − 59 =
- 36.514 − 496 =
- 37.315 − 275 =
- 38.202 − 187 =
- 39.77 − 36 =
- 40.1008 − 991 =
Answer key
- 25
- 19
- 34
- 43
- 21
- 44
- 30
- 42
- 28
- 31
- 13
- 15
- 43
- 31
- 33
- 29
- 15
- 45
- 34
- 19
- 41
- 37
- 38
- 6
- 39
- 21
- 34
- 26
- 29
- 6
- 26
- 30
- 13
- 24
- 43
- 18
- 40
- 15
- 41
- 17
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths