Grade 1 Math Worksheets
Connect objects, equations, and stories within 20. Explore whole tens in one place-value unit, or add a one-digit amount to a two-digit collection in another. Choose the size of counting unit and strategy the child is learning, using drawings as well as equations.
Addition & subtraction within 20
Picture activityPicture Addition Worksheets
Count two groups of pictures and write the matching addition equation.
5 problems · Answer key included
Calculation practiceAddition Within 20
Count on or make ten to add two numbers.
18 problems · Answer key included
Calculation practiceSubtraction Within 10
Take away or count back, including subtracting zero and subtracting a number from itself.
18 problems · Answer key included
Missing-number practiceMissing Addend Worksheets Within 20
Find the missing part of an addition equation; use counting on or subtraction.
12 problems · Answer key included
Word problemsAddition and Subtraction Word Problems Within 20
Read joining and taking-away stories, choose an equation, and answer in context.
6 problems · Answer key included
Word problemsFind the Starting Amount Word Problems
Work backward from a final total to find how many there were before.
6 problems · Answer key included
Word problemsMore and Fewer Comparison Word Problems
Identify the known amount and compare two people’s collections.
6 problems · Answer key included
Word problemsWord Problems With Extra Information
Choose the useful quantities instead of calculating with every number.
4 problems · Answer key included
Word problemsFind the Missing Change Word Problems
Use the starting amount and what remains to find how many cents were spent.
6 problems · Answer key included
Word problemsChoose an Equation Word Problems
Decide whether addition or subtraction finds the missing quantity in the story.
4 problems · Answer key included
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 problemsSame Numbers, Different Questions Word Problems
Compare two stories with the same numbers: find the new total in one and the starting amount in the other.
2 pairs · 4 word problems · Answer key included
Word problemsExplain Your Thinking Word Problems
Explain why the equation fits a taking-away story.
4 problems · Answer key included
Word problemsError Analysis Word Problems: Find and Fix the Mistake
Correct a friend who chooses addition just because more items arrive.
4 problems · Answer key included
Word problemsWrite Your Own Question Word Problems
Write a question about the total, then answer it with an addition equation using whole dollars.
4 problems · Answer key included
Word problemsDifference Word Problems Within 20
Match two rows of counters to find how much less one amount is than another.
4 problems · Answer key included
Word problemsHow Many More? Word Problems Within 20
Find the amount to add to reach a target. Fill the empty spaces and check the missing part.
4 problems · Answer key included
Add & subtract whole tens
Word problemsAdding and Subtracting Tens Word Problems
Combine or remove whole tens of counters. Explain the place value, including stories where zero counters change or remain.
4 problems · Answer key included
Add ones to a two-digit number
Word problems2 Digit Plus 1 Digit Addition Word Problems
Add 0–9 more counters to a two-digit collection. Count on, add the ones, or make the next ten; sums stay below 100.
4 problems · Answer key included
Understand tens and ones
Calculation practiceTens and Ones Expanded Form
Show the tens and ones in a two-digit number.
6 problems · Answer key included
Tell time to the hour and half hour
Picture activityTelling Time: Hours and Half Hours
Read analog clocks and write the time to the hour or half hour.
6 problems · Answer key included
Compare two-digit numbers
Calculation practiceComparing Two-Digit Numbers
Compare tens first, then ones, using numbers from 10 to 99.
6 problems · Answer key included
Ten more and ten less
Calculation practiceTen More and Ten Less
Change one ten and keep the ones the same.
6 problems · Answer key included
Order three lengths
Picture activityOrdering Three Lengths
Order three aligned strips and find the longest.
4 problems · Answer key included
Understand the equal sign
Calculation practiceTrue or False Addition Equations
Compare both sides of an addition equation and explain whether they match.
6 problems · Answer key included
Build and draw shapes
Drawing activityBuild and Draw Shapes
Join triangles, squares, and cubes, then sketch your models.
3 problems · Answer key included
These are selected practice skills, not a complete grade curriculum.