3rd grade mixed operations word problems worksheets
Mixed operations word problems put all four operations on one page: a joining story, then equal groups, then a compare, with fact-range numbers throughout (3.OA.A.3, 3.NBT.A.2). Each problem takes a single step. The skill being trained is the decision, because no sign is printed and no pattern repeats down the page.
Free printable PDF worksheet, aligned to Common Core 3.OA.A.3, 3.NBT.A.2.
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The kind of problems you'll get
Read each problem. Show your work and write the answer.
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A jewelry kit contains 90 blue beads and 10 green beads. How many beads are in the kit altogether?
Answer: 100
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A button jar contains 77 buttons, including 47 red buttons. How many buttons are not red?
Answer: 30
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Hugo sets out 10 boxes of crayons with 7 crayons in each box. How many crayons are there altogether?
Answer: 70
Every print pulls a fresh set of problems at this level, so a make-up test or a second sibling never gets the same sheet.
What's on each sheet
- Mixed operations word problems. Read each problem. Show your work and write the answer. 5 problems per page.
- Two-step word problems. Read each story. Show how you find the missing quantity. 5 problems per page.
Every version prints on US Letter or A4, with its answer key after the problems.
How to teach this
Make operation-naming a game before any solving happens: read all five problems first and label each one add, subtract, multiply, or divide in the margin. Then go back and compute. Splitting the deciding from the doing shows you exactly which step goes wrong, and most kids find the labeling round genuinely fun.
Watch for: Kids default to whatever operation the last worksheet used, so a page after multiplication practice gets multiplied all the way down. Have them say the operation and one reason before every problem. It takes five seconds and breaks the autopilot. Kids compute correctly but never check the size of the answer, so a class that gives books away somehow ends up with more. Ask whether the answer should be bigger or smaller than the starting amount before solving. Kids pin operations to single words, so 'each' always means multiply. 'Each' shows up in division stories too. Retelling the story beats keyword-spotting every time.
Common questions about mixed operations word problems
- What makes mixed word problems harder than regular ones?
- Nothing about the arithmetic. The numbers stay at fact level for 3rd grade. What changes is that no operation is announced, so every problem starts with a real decision instead of a pattern to follow.
- How many problems are on the page?
- Five one-step stories, each with room to show work and an answer line. The operations vary problem to problem, and the answer key shows the equation chosen as well as the result.
Related worksheets
- 4th grade mixed operations word problems A step harder, same skill
- 5th grade mixed operations word problems A step harder, same skill
- 3rd grade addition & subtraction word problems Same grade, nearby skill
- 3rd grade area & perimeter word problems Same grade, nearby skill
- 3rd grade division word problems Same grade, nearby skill
- 3rd grade mixed operations review Practice the facts first
- 3rd grade two-step word problems A version of this sheet, on its own page
- Mixed operations word problems, all grades The full progression
- All 3rd grade math worksheets Every skill at this level
- All 3rd grade worksheets Everything at this level
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Aligned to Common Core 3.OA.A.3, 3.NBT.A.2. Reviewed by the One more sheet team. Content version 240, updated September 2026.
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