This adding and subtracting within 20 worksheet gives first graders mixed addition and subtraction fact practice with a helpful number line. Includes a complete answer key for quick, no-prep math review.

This adding and subtracting to 20 worksheet gives 1st graders ten mixed addition and subtraction equations to solve within 20. Answer key included — perfect for quick, no-prep math fact practice at home or school.

This Ten More Ten Less Worksheet gives 1st graders eight quick problems to find ten more and ten less than a two-digit number. Includes an answer key for fast, no-prep place value practice.

This counting back to subtract worksheet gives 1st graders number-line hops, six equations within 20, and a word problem, with an answer key included, so subtraction becomes a quick, confident count.

This finding the missing number worksheet gives first graders focused practice solving for the unknown number in addition and subtraction equations within 20. Includes an answer key — a quick, no-prep way to build number sense and fact fluency.

This comparing numbers subtraction worksheet has 1st graders count two groups of pictures, write each number, and subtract to find how many more. Answer key included for fast, no-prep practice.

This finding 10 more 10 less activity helps 1st and 2nd grade children use a hundred chart to find 10 more and 10 less. Practice page and answer key included.

This true or false addition and subtraction worksheet helps 1st Grade students decide whether each equation is balanced, with an answer key included. A quick, clear way to build equal sign sense.

This word problem practice worksheet gives 1st graders five real-life addition and subtraction problems to solve within 20. An answer key is included, so checking work takes seconds.

This Valentine's Day Graphing Worksheet has 1st Grade students solve four subtraction facts, fill in a bar for each answer, and read the graph they built. Answer key included, so checking takes seconds.

This Count Up to Subtract Worksheet gives 1st Grade students a quick strategy for subtracting within 20 using paired equations, a number line, and two word problems. An answer key is included.

This Make It True Missing Number Addition Subtraction Worksheet gives 1st graders ten equations to complete by filling in the missing number. Answer key included for fast, no-prep practice.

A basic word problems worksheet for 1st Grade, with four illustrated stories that ask children to add or subtract within 20 and write the answer with its unit. Answer key included for fast, no-prep problem-solving practice.

This subtraction as an unknown addend activity helps K through 2nd grade students solve subtraction within 20 by matching each fact to its addition fact card. Answer key included.

This pumpkin subtraction worksheet gives 1st Grade students fall practice subtracting within 20, with ten boxed facts, four missing number problems, and an answer key for quick checking.

These Writing Subtraction Sentences Worksheets give 1st Grade students four story problems to turn into number sentences, with a full answer key included, so word problems stop feeling like a guessing game.

This Subtraction Word Problem Worksheet gives 1st Grade students four story problems within 20 to draw and solve, with an answer key included, so subtraction finally feels like something they can see.

This Adding to Solve Subtraction Problems Worksheet helps 1st graders solve subtraction facts within 20 by finding the missing addend. Six paired problems and a story problem, with an answer key included, build quick and confident fact fluency.

This single digit subtraction worksheet gives 1st grade students twelve column subtraction problems within ten, plus an answer key, so they build the fact fluency every later math skill depends on.

This number line jump backwards and solve worksheet helps 1st grade students subtract within 20 by counting back and jumping to the difference. An answer key is included for quick checking.