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
- 1.328 − 282 =
- 2.208 − 177 =
- 3.226 − 178 =
- 4.329 − 298 =
- 5.515 − 476 =
- 6.1002 − 975 =
- 7.90 − 73 =
- 8.119 − 81 =
- 9.106 − 70 =
- 10.530 − 492 =
- 11.109 − 78 =
- 12.103 − 86 =
- 13.321 − 284 =
- 14.1010 − 994 =
- 15.507 − 495 =
- 16.98 − 70 =
- 17.104 − 62 =
- 18.125 − 78 =
- 19.86 − 55 =
- 20.88 − 77 =
- 21.216 − 194 =
- 22.123 − 80 =
- 23.210 − 197 =
- 24.1015 − 993 =
- 25.82 − 57 =
- 26.1009 − 977 =
- 27.1019 − 982 =
- 28.216 − 198 =
- 29.122 − 89 =
- 30.107 − 64 =
- 31.1010 − 992 =
- 32.106 − 72 =
- 33.1001 − 975 =
- 34.89 − 58 =
- 35.312 − 296 =
- 36.508 − 481 =
- 37.100 − 73 =
- 38.130 − 82 =
- 39.111 − 85 =
- 40.1029 − 994 =
Answer key
- 46
- 31
- 48
- 31
- 39
- 27
- 17
- 38
- 36
- 38
- 31
- 17
- 37
- 16
- 12
- 28
- 42
- 47
- 31
- 11
- 22
- 43
- 13
- 22
- 25
- 32
- 37
- 18
- 33
- 43
- 18
- 34
- 26
- 31
- 16
- 27
- 27
- 48
- 26
- 35
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths