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
- 1.90 − 57 =
- 2.95 − 77 =
- 3.91 − 55 =
- 4.520 − 493 =
- 5.322 − 295 =
- 6.110 − 73 =
- 7.510 − 478 =
- 8.1010 − 983 =
- 9.307 − 286 =
- 10.525 − 495 =
- 11.89 − 56 =
- 12.88 − 70 =
- 13.528 − 496 =
- 14.311 − 294 =
- 15.223 − 195 =
- 16.103 − 57 =
- 17.95 − 73 =
- 18.1022 − 984 =
- 19.54 − 45 =
- 20.521 − 492 =
- 21.203 − 192 =
- 22.114 − 79 =
- 23.63 − 25 =
- 24.224 − 191 =
- 25.509 − 498 =
- 26.83 − 64 =
- 27.230 − 176 =
- 28.130 − 94 =
- 29.59 − 43 =
- 30.223 − 197 =
- 31.120 − 92 =
- 32.527 − 493 =
- 33.98 − 58 =
- 34.520 − 498 =
- 35.64 − 43 =
- 36.1023 − 986 =
- 37.304 − 275 =
- 38.80 − 27 =
- 39.109 − 75 =
- 40.522 − 488 =
Answer key
- 33
- 18
- 36
- 27
- 27
- 37
- 32
- 27
- 21
- 30
- 33
- 18
- 32
- 17
- 28
- 46
- 22
- 38
- 9
- 29
- 11
- 35
- 38
- 33
- 11
- 19
- 54
- 36
- 16
- 26
- 28
- 34
- 40
- 22
- 21
- 37
- 29
- 53
- 34
- 34
Free mental maths lessons, practice and worksheets at talentjr.in/mental-maths