Will this help with my child's 1st grade math homework?

Yes. StudyPug covers every Delaware 1st grade math topic, from addition and subtraction within 20 to place value and shapes, so your child can find help on the exact concept they are working on.

How long are the video lessons?

Most video lessons run between 5 and 15 minutes, focusing on a single concept. Short lessons make it easy for 1st graders to stay focused and revisit a topic as many times as they need.

Is there a state test for 1st grade math in Delaware?

Delaware state assessments in math are administered in grades 3 through 8 and grade 10. First grade is not a tested year, but building strong skills now sets the foundation for those later assessments.

Can my child use StudyPug on a tablet or phone?

Yes. StudyPug works on tablets, phones, and computers, so your child can practice Delaware 1st grade math at home, on the go, or wherever works best for your family.

Can I try StudyPug before paying?

Yes. StudyPug offers free sample lessons so you can see the content before subscribing, and every paid plan is backed by a 30-day money-back guarantee if it is not the right fit.

DE 1st Grade Math Curriculum

Give your 1st grader the support they need to keep up with Delaware's math curriculum. Lessons and practice problems cover every strand taught in class this year.

DE 1st Grade Math Curriculum

IDStandardStudyPug Topic

1.OA.A.1Use addition and subtraction within 20 to solve word problems
- Addition word problems up to 20
- Using models to add up to 20
- Subtracting with digits up to 20
- Subtracting with objects up to 20
- Subtraction word problems up to 20
1.OA.A.2Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20
- Adding with 3 numbers up to 20
1.OA.B.3Apply properties of operations as strategies to add and subtract
- Subtraction facts up to 20
- Verifying subtraction statements
1.OA.B.4Understand subtraction as an unknown-addend problem
- Completing subtraction statements up to 20
- Understanding the subtraction sign
1.OA.C.6Add and subtract within 20, demonstrating fluency for addition and subtraction within 10
- Addition facts up to 20
1.OA.D.7Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false
- Verifying addition statements
1.OA.D.8Determine the unknown whole number in an addition or subtraction equation relating three whole numbers
- Addition with regrouping up to 20
- Complete the addition statement up to 5
- Completing the addition statement up to 10
- Complete the subtraction statement up to 5
- Complete the subtraction statement up to 10
1.NBT.A.1Count to 120, starting at any number less than 120
- Converting dot grids to numbers up to 100
- Missing values in a number grid up to 100
- Number sequences with 1,2,3,5,10
- Ordinal numbers
- Writing numbers as words
- Writing words as numbers
1.NBT.B.2Understand that the two digits of a two-digit number represent amounts of tens and ones
- Place values of digits up to 99
- Counting the value of a digit up to 99
- Numeral expanding up to 99
- Identifying tens and ones
1.NBT.B.3Compare two two-digit numbers based on meanings of the tens and ones digits, recording the results of comparisons with the symbols >, =, and <
- Comparing values up to 99
1.NBT.C.4Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10
- Adding with digits up to 20
- Adding digits up to 100
- Adding with doubles up to 100
- Using counting to add digits up to 100
- Addition strategies
- Addition with regrouping up to 100
- Using models to add up to 100
- Addition tables up to 100
- Completing addition statements up to 100
- Addition word problems up to 100
1.NBT.C.5Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count
- Adding numbers with 5s and 10s
1.NBT.C.6Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90
- Subtracting with the number zero
- Subtracting by 10s
- Subtracting with place value models up to 100
- Subtraction facts up to 100
- Completing subtraction images & statements
- Using objects to subtract up to 100
1.G.A.3Partition circles and rectangles into two and four equal shares
- Sharing & partition up to 10
- Remainders from division up to 10

1st Grade Math

About 1st Grade Delaware math

Delaware follows the Delaware Academic Standards for Mathematics, organized around operations and algebraic thinking, number and operations in base ten, measurement and data, and geometry. In 1st grade, students build fluency with addition and subtraction within 20, develop place value understanding for two-digit numbers, measure lengths, tell time, and work with shapes and data. StudyPug provides step-by-step lessons and practice problems aligned to every strand.

Strands: operations and algebraic thinking, number and operations in base ten, measurement and data, and geometry
Video lessons for every 1st grade Delaware math topic
Practice problems and worked examples after every lesson
Content aligned to the Delaware Academic Standards for Mathematics

Curriculum topics by strand

Lessons and practice organized by strand, aligned to the Delaware Academic Standards for Mathematics.

Topic includes:

Practice

Video

Quiz

Standard

StudyPug Topic

Delaware 1st Grade Math Topics

Operations and Algebraic Thinking: Addition and subtraction within 20, solving word problems, applying properties of operations, understanding the equal sign, and finding unknown values in equations.
Number and Operations in Base Ten: Counting to 120, understanding tens and ones in two-digit numbers, comparing two-digit numbers with >, =, and <, adding within 100, and mentally finding 10 more or 10 less.
Measurement and Data: Ordering objects by length, expressing length in whole units, telling and writing time in hours and half-hours, and organizing and interpreting data in up to three categories.
Geometry: Distinguishing defining from non-defining shape attributes, composing two- and three-dimensional shapes, and partitioning circles and rectangles into equal shares.

How StudyPug Helps Delaware 1st Grade Math Students

When a 1st grader gets stuck on place value or struggles to remember the steps for adding two-digit numbers, StudyPug lets them replay a lesson as many times as needed and work through practice problems at their own pace. Parents looking for a structured starting point can explore the 1 class maths course to see every topic covered this year. Students who want to check their progress can try a grade 1 math practice test to spot gaps before they become bigger problems.

StudyPug lessons follow the same sequence Delaware classrooms use, so the material feels familiar rather than like an entirely separate program. Each concept builds on the last, moving from addition and subtraction fluency through number sense, measurement, and geometry.

Aligned to Delaware 1st Grade Math Curriculum

Every lesson and practice problem on StudyPug is built around the Delaware Academic Standards for Mathematics. The content mirrors what 1st grade teachers in Delaware assign throughout the school year, covering all four strands so students are always practicing exactly what their class is working on. Families who want to see where 1st grade builds from can also review the de kindergarten math curriculum to understand the progression.

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Written by the StudyPug Math Team

Last updated June 5, 2026

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