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
- 1.526 − 496 =
- 2.95 − 78 =
- 3.1016 − 975 =
- 4.109 − 98 =
- 5.517 − 494 =
- 6.519 − 475 =
- 7.1007 − 977 =
- 8.515 − 498 =
- 9.509 − 489 =
- 10.304 − 293 =
- 11.101 − 80 =
- 12.77 − 42 =
- 13.318 − 287 =
- 14.116 − 86 =
- 15.216 − 182 =
- 16.88 − 71 =
- 17.202 − 182 =
- 18.81 − 66 =
- 19.208 − 196 =
- 20.87 − 74 =
- 21.1001 − 990 =
- 22.63 − 34 =
- 23.223 − 190 =
- 24.76 − 39 =
- 25.61 − 43 =
- 26.106 − 56 =
- 27.117 − 92 =
- 28.1003 − 978 =
- 29.213 − 196 =
- 30.68 − 30 =
- 31.106 − 88 =
- 32.1009 − 996 =
- 33.67 − 25 =
- 34.71 − 42 =
- 35.217 − 194 =
- 36.75 − 36 =
- 37.114 − 78 =
- 38.505 − 487 =
- 39.1018 − 996 =
- 40.501 − 483 =
Answer key
- 30
- 17
- 41
- 11
- 23
- 44
- 30
- 17
- 20
- 11
- 21
- 35
- 31
- 30
- 34
- 17
- 20
- 15
- 12
- 13
- 11
- 29
- 33
- 37
- 18
- 50
- 25
- 25
- 17
- 38
- 18
- 13
- 42
- 29
- 23
- 39
- 36
- 18
- 22
- 18
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths