Block Sums

Block Sums gives students a clear, picture-based way to practice adding fractions with like denominators. Students look at two rows of fraction blocks, count the shaded parts in each model, and write both the addition equation and the final sum. This practice develops fraction models, numerator understanding, denominator recognition, equal-part counting, addition fluency, and visual reasoning. It is especially useful for students in grades 4-5 who may understand counting but still need help connecting a picture to a written fraction.

Academic Focus

• Read fraction models: Students determine how many equal blocks make the whole and how many blocks are shaded.
• Write each addend: Learners turn the first and second visual models into correctly written fractions.
• Combine shaded parts: Students add the numerators while keeping the shared denominator unchanged.
• Connect pictures and symbols: Each completed equation shows how a visual model represents fraction addition.

Instructional Benefits

• Concrete learning support: The blocks make fractions feel less abstract for children who need to see the parts.
• Simple parent guidance: An adult can ask, “How many blocks are shaded in each row?” and then, “How many are shaded altogether?”
• Flexible classroom use: The page works well for guided practice, math centers, intervention, homework, or review.
• Built-in scaffolding: Students can count the boxes before being expected to solve with numbers alone.
• Low-prep resource: The worksheet is ready to print and requires no special materials.

This worksheet helps children understand that a denominator tells how many equal-sized pieces make one whole. Because the denominators are alike, every block has the same value, so students can safely combine the shaded pieces by adding the numerators. Parents may find it helpful to compare the models to pieces from the same-size candy bar or sections of the same-size tray. As students work, they strengthen fraction sense, visual counting, equation writing, addition accuracy, denominator knowledge, and mathematical confidence. The page is valuable in classroom and homeschool settings because it slows the process down and allows adults to spot exactly where a child may be confused.