Missing Fraction Part Word Problems
Keep the same reference whole when teaching missing fraction amounts.
Teaching notes for parents and teachers
How to teach it
Represent the total and known part on matching fraction strips. Identify the unfilled part before subtracting.
Example to work through together
Use the model below as you explain the example. Have your student point to the quantities as you discuss them.
3/2 + □ = 2
Two unit wholes make four halves: 2 = 4/2. Three halves are known, leaving one half.
2 − 3/2 = 4/2 − 3/2 = 1/2
Check: 3/2 + 1/2 = 4/2 = 2.
Ask your student
What do the known part and the missing part add up to?
If your student needs help
If the student's pieces use different wholes, redraw the strips at the same scale.
Make a practice set
Select the worksheet, answer key, or both. When both are selected, the answer key prints after the questions. Keep it separate if you want your student to work independently.
After your student finishes
Ask what each whole represents. Have the child explain the missing part, then check that both parts add to the stated total.
Word problemsBar Model Word Problems
Use a whole-and-parts diagram to find the total, the starting amount, or the amount used.
4 problems · Answer key included
Word problemsAdding and Subtracting Fractions Word Problems With Like Denominators
Combine or remove fractional cable lengths measured using the same one-foot whole.
4 problems · Answer key included
Word problemsMissing Part Word Problems — Within 100 or 1,000
Find a missing part or an amount needed to reach a target. Choose practice within 100 or extend to 1,000.
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More about fractions · Grade 4 worksheets
Grade 4 selected skill connection: 4.NF.B.3.a–c (selected part-whole and mixed-number relationships; whole/target from 1 to 2). See the Common Core standards for this grade. This worksheet does not cover every requirement in the standard.