Add and Subtract Decimals Worksheets

About This Collection of Worksheets

This worksheet collection gives Grade 6 students focused practice with adding and subtracting decimals using both horizontal and vertical formats. Learners work with tenths, hundredths, and thousandths while strengthening place-value alignment, regrouping strategies, and operation fluency. The collection also includes mixed review activities, missing-value equations, estimation tasks, and real-world word problems that help students apply decimal skills in meaningful ways.

Teachers can use these worksheets during whole-group instruction, guided math lessons, review sessions, or targeted intervention practice. Several activities encourage students to align decimal points carefully, use placeholder zeros correctly, estimate answers for reasonableness, and explain problem-solving strategies clearly. Students also strengthen algebraic reasoning by solving decimal equations with missing values and applying inverse operations accurately.

The printable format makes these worksheets ideal for classrooms, tutoring programs, homeschool instruction, and independent practice routines. Organized layouts, scaffolded problem types, and gradual increases in difficulty help students build confidence while improving computational accuracy. Across the collection, learners develop stronger Grade 6 decimal fluency aligned to Common Core standards involving decimal operations, place-value reasoning, and real-world mathematical problem solving.

Paul’s Teacher Tip

Students are often more successful with decimal operations when they focus on aligning decimal points before beginning any computation. Encourage learners to rewrite horizontal equations vertically if they need extra support organizing place values. Estimation is also a powerful strategy because it helps students recognize unreasonable answers before finishing a problem. Placeholder zeros can make decimal alignment much easier for students who struggle with uneven decimal lengths. Graph paper or lined grids can help learners organize columns neatly and reduce place-value mistakes. Frequent mixed review activities strengthen flexibility and help students decide quickly whether to add, subtract, estimate, or solve for a missing value.

Worksheet Collection Skill Spotlights

Decimal Challenge

• What Kids Do:
  Students solve mixed decimal addition and subtraction problems written in vertical format while organizing decimal places carefully. Learners regroup, use placeholder zeros, and estimate answers while solving equations involving multiple decimal place values.
• Target Skill:
  Students strengthen decimal computation fluency aligned to Common Core Grade 6 standards by applying vertical alignment, regrouping, and place-value reasoning strategies accurately. The worksheet supports procedural confidence and flexible decimal operation skills.

Decimal Clues

• What Kids Do:
  Students solve missing-value decimal equations in vertical format by determining the unknown number needed to complete each equation correctly. Learners line up decimal places carefully and apply inverse operations to solve accurately.
• Target Skill:
  Students strengthen algebraic reasoning and decimal equation-solving skills aligned to Grade 6 standards. The worksheet reinforces inverse operations, decimal alignment, and logical problem-solving strategies involving unknown values.

Decimal Columns

• What Kids Do:
  Students add decimals in vertical format by lining up decimal points and solving equations column by column. Learners work with tenths, hundredths, and thousandths while organizing place values carefully during computation.
• Target Skill:
  Students build fluency with decimal addition aligned to Common Core decimal computation standards. The worksheet reinforces place-value alignment, carrying strategies, and accurate decimal notation during addition operations.

Decimal Differences

• What Kids Do:
  Students subtract decimals in horizontal format while carefully organizing place values and aligning decimal points correctly. Learners solve equations involving several decimal place values and estimate answers for reasonableness.
• Target Skill:
  Students strengthen decimal subtraction fluency aligned to Grade 6 standards by applying place-value alignment and subtraction strategies accurately. The worksheet reinforces computational organization and decimal reasoning skills.

Decimal Mix

• What Kids Do:
  Students complete mixed decimal addition and subtraction problems written in horizontal format while determining which operation to use for each equation. Learners organize decimals carefully and estimate answers before solving.
• Target Skill:
  Students improve flexibility with decimal operations aligned to Common Core computation standards by solving mixed-operation equations accurately. The worksheet reinforces operation recognition, decimal alignment, and procedural fluency.

Decimal Mysteries

• What Kids Do:
  Students solve missing-value decimal equations by determining the unknown number needed to complete each addition or subtraction statement correctly. Learners check their work by substituting answers back into the equation.
• Target Skill:
  Students strengthen decimal reasoning and algebra readiness skills aligned to Grade 6 standards. The worksheet reinforces inverse operations, equation-solving strategies, and accurate place-value alignment during computation.

Decimal Operations

• What Kids Do:
  Students solve decimal addition and subtraction problems in vertical format while organizing place values and regrouping carefully. Learners complete equations involving tenths, hundredths, and thousandths using structured column methods.
• Target Skill:
  Students build decimal operation fluency aligned to Common Core standards by applying vertical alignment and regrouping strategies accurately. The worksheet supports procedural accuracy and deeper place-value understanding.

Decimal Practice

• What Kids Do:
  Students complete mixed decimal addition and subtraction problems in horizontal format while estimating answers and organizing place values carefully. Learners solve equations involving several decimal place values with increasing independence.
• Target Skill:
  Students strengthen decimal computation skills aligned to Grade 6 standards through repeated mixed-operation practice. The worksheet reinforces place-value alignment, regrouping accuracy, and flexible decimal problem-solving strategies.

Decimal Review

• What Kids Do:
  Students review decimal addition, subtraction, estimation, and missing-value equations through a mixed quiz-style activity. Learners switch between vertical and horizontal formats while solving a variety of decimal problems.
• Target Skill:
  Students reinforce multiple decimal operation standards by applying estimation, equation-solving, and computation strategies accurately. The worksheet supports long-term decimal fluency, reasoning, and flexible mathematical thinking.

Decimal Stories

• What Kids Do:
  Students solve real-world decimal word problems involving money, measurements, distances, and everyday situations. Learners determine whether to add or subtract decimals while organizing work and labeling answers correctly.
• Target Skill:
  Students strengthen real-world problem-solving and decimal application skills aligned to Grade 6 standards. The worksheet reinforces operational reasoning, place-value accuracy, and interpretation of practical mathematical situations.

Decimal Subtraction

• What Kids Do:
  Students subtract decimals in vertical format by aligning decimal points carefully and regrouping across place values when needed. Learners solve equations involving tenths, hundredths, and thousandths with organized column work.
• Target Skill:
  Students improve decimal subtraction fluency aligned to Common Core computation standards through vertical alignment and regrouping strategies. The worksheet reinforces accurate decimal notation and place-value understanding.

Decimal Sums

• What Kids Do:
  Students solve decimal addition problems in horizontal format while organizing decimal places carefully and checking answers through estimation. Learners work with tenths, hundredths, and thousandths during computation practice.
• Target Skill:
  Students develop decimal addition fluency aligned to Grade 6 standards by applying place-value alignment and computation strategies accurately. The worksheet reinforces decimal notation, organization, and operational confidence.