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
- 1.530 − 496 =
- 2.99 − 72 =
- 3.65 − 34 =
- 4.526 − 480 =
- 5.219 − 178 =
- 6.1018 − 976 =
- 7.101 − 76 =
- 8.83 − 74 =
- 9.325 − 285 =
- 10.206 − 175 =
- 11.306 − 292 =
- 12.51 − 38 =
- 13.213 − 179 =
- 14.330 − 278 =
- 15.118 − 92 =
- 16.123 − 95 =
- 17.203 − 188 =
- 18.51 − 44 =
- 19.1019 − 992 =
- 20.502 − 490 =
- 21.328 − 277 =
- 22.522 − 482 =
- 23.56 − 28 =
- 24.81 − 74 =
- 25.310 − 280 =
- 26.217 − 192 =
- 27.110 − 97 =
- 28.119 − 97 =
- 29.506 − 486 =
- 30.203 − 182 =
- 31.205 − 176 =
- 32.53 − 34 =
- 33.518 − 478 =
- 34.83 − 60 =
- 35.121 − 85 =
- 36.514 − 492 =
- 37.520 − 489 =
- 38.1010 − 980 =
- 39.97 − 66 =
- 40.126 − 79 =
Answer key
- 34
- 27
- 31
- 46
- 41
- 42
- 25
- 9
- 40
- 31
- 14
- 13
- 34
- 52
- 26
- 28
- 15
- 7
- 27
- 12
- 51
- 40
- 28
- 7
- 30
- 25
- 13
- 22
- 20
- 21
- 29
- 19
- 40
- 23
- 36
- 22
- 31
- 30
- 31
- 47
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths