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
- 1.52 − 38 =
- 2.208 − 197 =
- 3.82 − 78 =
- 4.80 − 36 =
- 5.93 − 74 =
- 6.201 − 194 =
- 7.1028 − 992 =
- 8.514 − 481 =
- 9.106 − 90 =
- 10.215 − 186 =
- 11.64 − 25 =
- 12.224 − 177 =
- 13.68 − 28 =
- 14.211 − 197 =
- 15.124 − 98 =
- 16.1011 − 982 =
- 17.528 − 496 =
- 18.518 − 492 =
- 19.205 − 181 =
- 20.510 − 476 =
- 21.505 − 495 =
- 22.101 − 85 =
- 23.1007 − 994 =
- 24.107 − 94 =
- 25.65 − 28 =
- 26.90 − 59 =
- 27.519 − 491 =
- 28.503 − 493 =
- 29.321 − 277 =
- 30.128 − 93 =
- 31.222 − 191 =
- 32.516 − 490 =
- 33.519 − 488 =
- 34.85 − 64 =
- 35.110 − 77 =
- 36.107 − 65 =
- 37.108 − 86 =
- 38.329 − 292 =
- 39.204 − 179 =
- 40.1019 − 997 =
Answer key
- 14
- 11
- 4
- 44
- 19
- 7
- 36
- 33
- 16
- 29
- 39
- 47
- 40
- 14
- 26
- 29
- 32
- 26
- 24
- 34
- 10
- 16
- 13
- 13
- 37
- 31
- 28
- 10
- 44
- 35
- 31
- 26
- 31
- 21
- 33
- 42
- 22
- 37
- 25
- 22
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths