Grade 3 Mixed Operations Practice
All four operations on a single grade 3 page, so the first job is spotting which sign is in front of you. Twenty problems with a complete answer key.
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Three different problem sets — same skill, same layout, fresh numbers.
Preview — Set A
Check the sign in each problem before you work. All four operations appear on this page.
- 1.262 + 86 =
- 2.650 − 104 =
- 3.8 × 10 =
- 4.10 ÷ 2 =
- 5.449 + 27 =
- 6.152 − 30 =
- 7.9 × 2 =
- 8.60 ÷ 10 =
- 9.457 + 67 =
- 10.838 − 825 =
- 11.8 × 5 =
- 12.70 ÷ 7 =
- 13.421 + 445 =
- 14.171 − 21 =
- 15.2 × 9 =
- 16.8 ÷ 2 =
- 17.424 + 390 =
- 18.535 − 45 =
- 19.8 × 3 =
- 20.40 ÷ 5 =
What this worksheet covers
This is a 20-problem drill for grade 3 mixed operations, printed in black and white with the key on page two. Within that, six of the ten column problems need regrouping and the rest do not, so the two cases are mixed rather than blocked and the numbers run as high as 838. Problems 7 and 14, for instance, are "9 × 2" and "171 − 21". It is written against Common Core 3.OA.7 — Operations & Algebraic Thinking, grade 3.
Skills practiced
At grade 3, mixed operations is about all four operations, with two-step expressions introduced, and this sheet takes one slice of that. What a student is asked to do here is grade 3 Mixed Operations Practice. Working the page asks a student to carry or borrow across place-value columns without losing a digit. Nineteen different answers appear across the twenty problems, so a student cannot copy one result down the page.
About the drill format
A drill is straight practice: 20 problems of the same kind, laid out across the page with working space under each — problem 7, "9 × 2" is typical of the whole page. A drill that changes operation from problem to problem tests sign reading as much as computation.
Set A, Set B and Set C
Set A is the original sheet; Sets B and C redraw each problem with the same shape and recomputed answers. Where Set A's problem 11 is "8 × 5", Set B's is "8 × 4".
How to use this worksheet
Give this drill uninterrupted. At grade 3, mixed operations is where procedure and recall have to run at the same time, and twenty problems done in fragments hide which of the two is the problem. Ask the student to re-work one missed mixed operations problem from scratch on Set B rather than correcting it in place; the second attempt shows whether the method changed.
One mistake to watch for
The operation sign is ignored: every problem on a mixed page is added. On this grade 3 drill, problem 16 ("8 ÷ 2") is the kind of item where it shows.
Sign reading is not yet part of the routine because most practice pages only carry one operation.
Have the student circle or trace every operation sign before solving anything on the page.
Other grade 3 mixed operations formats
The same skill in the other formats available at this grade.
A step either side
The same format one grade down and one grade up — the easier sheet is often the faster fix when this one is not landing.
- Grade 2 Mixed Addition and Subtraction Within 100 — grade 2, 20 problems
- Grade 4 Two-Step Mixed Operations — grade 4, 18 problems
Drill sheets in other grade 3 topics
Print as many copies of this grade 3 mixed operations drill as you need; Sets A, B and C and their keys are six separate PDFs, all free.