Addition worksheets
Addition worksheets that build from single-digit bridging to three-digit sums. Each level practises one clear skill, so it is easy to see what to move on to.
Addition: easy
A number from 5 to 30 plus a single digit, such as 17 + 6. This is practice at bridging through ten: making the next ten, then adding what is left.
Open the easy sheet MEDIUMAddition: medium
Two two-digit numbers, such as 48 + 27, with answers up to 168. Split the second number into tens and ones and add each part in turn.
Open the medium sheet HARDAddition: hard
Two three-digit numbers, such as 347 + 286. Add the hundreds, tens and ones separately, then combine the three totals.
Open the hard sheetAddition: easy to hard on one page
Twelve questions: four from each level, in order. Useful for finding the level where the work starts to slow down.
Addition worksheet: easy to hard
12 questions · four easy, four medium, four hard
NameDateScore/ 12
- 10 + 4 =
- 18 + 4 =
- 30 + 8 =
- 5 + 2 =
- 13 + 29 =
- 29 + 79 =
- 55 + 48 =
- 16 + 54 =
- 147 + 138 =
- 102 + 688 =
- 542 + 895 =
- 868 + 199 =
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Answer key
Addition worksheet: easy to hard
- 10 + 4 = 14
- 18 + 4 = 22
- 30 + 8 = 38
- 5 + 2 = 7
- 13 + 29 = 42
- 29 + 79 = 108
- 55 + 48 = 103
- 16 + 54 = 70
- 147 + 138 = 285
- 102 + 688 = 790
- 542 + 895 = 1437
- 868 + 199 = 1067
iwanttobegoodatmath.com/worksheets/addition/