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
- 1.320 − 277 =
- 2.102 − 64 =
- 3.103 − 92 =
- 4.71 − 34 =
- 5.515 − 488 =
- 6.206 − 190 =
- 7.68 − 28 =
- 8.102 − 95 =
- 9.227 − 177 =
- 10.86 − 55 =
- 11.88 − 62 =
- 12.315 − 275 =
- 13.74 − 47 =
- 14.523 − 476 =
- 15.124 − 85 =
- 16.107 − 94 =
- 17.91 − 60 =
- 18.101 − 96 =
- 19.507 − 488 =
- 20.503 − 495 =
- 21.505 − 490 =
- 22.85 − 76 =
- 23.519 − 496 =
- 24.89 − 64 =
- 25.80 − 38 =
- 26.103 − 73 =
- 27.1023 − 975 =
- 28.58 − 42 =
- 29.76 − 42 =
- 30.208 − 184 =
- 31.74 − 46 =
- 32.78 − 26 =
- 33.89 − 65 =
- 34.202 − 189 =
- 35.1010 − 992 =
- 36.306 − 294 =
- 37.60 − 46 =
- 38.73 − 25 =
- 39.105 − 67 =
- 40.90 − 73 =
Answer key
- 43
- 38
- 11
- 37
- 27
- 16
- 40
- 7
- 50
- 31
- 26
- 40
- 27
- 47
- 39
- 13
- 31
- 5
- 19
- 8
- 15
- 9
- 23
- 25
- 42
- 30
- 48
- 16
- 34
- 24
- 28
- 52
- 24
- 13
- 18
- 12
- 14
- 48
- 38
- 17
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths