Grade 2 Mixed Addition and Subtraction Within 100
Mixed addition and subtraction within 100 for grade 2, with eight of the twenty problems regrouping and the rest not. Free printable PDF and key.
Look at the sign in each problem. Add or subtract, regrouping where you need to.
- 1.14 + 52 =
- 2.60 − 4 =
- 3.70 + 29 =
- 4.20 − 1 =
- 5.92 + 6 =
- 6.82 − 63 =
- 7.20 + 29 =
- 8.89 − 21 =
- 9.59 + 26 =
- 10.53 − 26 =
- 11.5 + 93 =
- 12.94 − 29 =
- 13.81 + 18 =
- 14.69 − 9 =
- 15.32 + 52 =
- 16.51 − 17 =
- 17.17 + 11 =
- 18.68 − 4 =
- 19.78 + 2 =
- 20.78 − 67 =
What this worksheet covers
There are twenty mixed problems here, on one printable page, with the worked answer key on the second. What makes this set particular: eight of the twenty problems require regrouping and the rest do not, so the two cases are mixed rather than blocked together; numbers reach 94. It is written against Common Core 2.NBT.5 — part of Number & Operations in Base Ten in grade 2.
Skills practiced
At this point in the sequence, work in mixed operations is really about recognizing addition versus subtraction situations. Concretely, the page tests whether a student can regroup past ten rather than counting up one at a time. The useful question after marking is not how many were right but whether the same method produced all of them.
How to use this worksheet
Sit alongside for this one. At grade 2 the useful information is not the score but which problems drew a pause, so watch for hesitation rather than waiting for the finished page. Mark it the same day using the key on page two — an error caught immediately is a correction, and one caught next week is a habit.
One mistake to watch for
The operation symbol is misread and the previous problem's operation is repeated.
Blocked practice has trained the student to set an operation once per page rather than per problem.
Have the operation circled before solving, and use mixed pages routinely rather than as an occasional review.
Related worksheets
Also aligned to 2.NBT.5
Different problem sets against the same standard — useful when one page was not enough, or when a student needs the same skill approached from another topic.
- Grade 2 Addition Practice — grade 2, 20 problems
- Grade 2 Subtraction Practice — grade 2, 20 problems
A step either side
Mixed operations either side of grade 2, for stepping the difficulty rather than repeating it.
- Grade 1 Mixed Addition and Subtraction to 20 — grade 1, 20 problems
- Grade 3 Mixed Operations Practice — grade 3, 20 problems
One PDF, twenty problems, and a full key: this is grade 2 mixed operations practice for recognizing addition versus subtraction situations, free for home and classroom use.