1.OA.A.1 Operations and Algebraic Thinking worksheets for Grade 1

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    1.OA.A.1

    Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.

    Check out this FREE Grade 1 1.OA.A.1 Trial Lesson!

    Mental Math -Subtract and Add by 10 - Part 2

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    • 1.OA.A.1
    Amusement Park Word Problems Worksheet
    Amusement Park Word Problems Worksheet

    Amusement Park Word Problems Worksheet

    Engage kids with math by making it realistic and incorporating manipulatives or pics they like! This worksheet helps kids understand word problems. Read the problem, note numbers and key phrases like "in total," then count the pics to find the total!
    Amusement Park Word Problems Worksheet
    Worksheet
    Garden Subtraction Worksheet
    Garden Subtraction Worksheet

    Garden Subtraction Worksheet

    Help your kids understand math with this fun, garden-themed subtraction worksheet! Have them read the number sentences and count the veggies in each row. Then, subtract 10 from each row to find the answer. They'll love counting the colorful veggies and solving the problems!
    Garden Subtraction Worksheet
    Worksheet
    Subtracting Toys with Tyler Worksheet
    Subtracting Toys with Tyler Worksheet

    Subtracting Toys with Tyler Worksheet

    Kids can use cheerful cars and busses to help Tyler donate toys to needy children. The worksheet provides one-to-one representation to help them select the correct subtraction equation, while sharpening their math skills and accuracy. It's exciting and educational!
    Subtracting Toys with Tyler Worksheet
    Worksheet
    Sea Math Worksheet
    Sea Math Worksheet

    Sea Math Worksheet

    Dive into an ocean of addition with this fun math worksheet! Help your little mathematician count and add colorful coral and fish. Point out phrases like "in total" or "all together" as a reminder to use addition. Watch them add to find the answer and check the boxes to finish!
    Sea Math Worksheet
    Worksheet
    Addition and Subtraction: Equations Worksheet
    Addition and Subtraction: Equations Worksheet

    Addition and Subtraction: Equations Worksheet

    This worksheet sharpens your child's visual processing, math equation solving and order of operations skills. It features colorful pictures to help them add and subtract, and traceable lines to identify the correct equation. A great way to practice these skills! (80 words)
    Addition and Subtraction: Equations Worksheet
    Worksheet
    Adding and Subtracting: Instruments Worksheet
    Adding and Subtracting: Instruments Worksheet

    Adding and Subtracting: Instruments Worksheet

    Children can help Isla count her musical instruments with this fun worksheet. The downloadable PDF gives them a chance to practice addition and subtraction by connecting pictures to equations. It's also a great way to learn the order of operations.
    Adding and Subtracting: Instruments Worksheet
    Worksheet
    Guess the Word Problem Worksheet
    Guess the Word Problem Worksheet

    Guess the Word Problem Worksheet

    Head to the Arctic Circle for math word problems with penguins, bears, and eskimos! This winter printable worksheet helps kids enjoy math with cute images. Guide kids through addition and subtraction in standard form with the penguins. Compare word problems to its written and pictorial forms for an enjoyable lesson!
    Guess the Word Problem Worksheet
    Worksheet
    Match and Solve: Butterfly Problem Worksheet
    Match and Solve: Butterfly Problem Worksheet

    Match and Solve: Butterfly Problem Worksheet

    Kids should practice math problems in different ways. This fun worksheet uses butterflies to represent numbers in word problems. Help your child read the problem and count the butterflies to find the correct illustration. Then, pick the equation with the correct answer and find the solution. Tick the box to complete! (80 words)
    Match and Solve: Butterfly Problem Worksheet
    Worksheet
    Subtract by Selling Lemonade with Sabrina Worksheet
    Subtract by Selling Lemonade with Sabrina Worksheet

    Subtract by Selling Lemonade with Sabrina Worksheet

    Kids love running a lemonade stand! Help Sabrina serve up delicious lemonade while working on basic subtraction skills. Look at each picture and use the traceable lines to link them to the correct equations. Download this fun, easy PDF to help kids practice basic computation with success.
    Subtract by Selling Lemonade with Sabrina Worksheet
    Worksheet
    Drawing to Help Us Subtract Worksheet
    Drawing to Help Us Subtract Worksheet

    Drawing to Help Us Subtract Worksheet

    Math is made fun with this free worksheet featuring Arctic animal pictures to solve basic subtraction word problems. Kids read the problem and choose the correct drawing of the animals to represent the solution. They'll have a blast with their cool animal friends while learning math!
    Drawing to Help Us Subtract Worksheet
    Worksheet
    Match and Solve: Cupcakes Problem Worksheet
    Match and Solve: Cupcakes Problem Worksheet

    Match and Solve: Cupcakes Problem Worksheet

    This math worksheet will excite your kid! Read the word problem and look at the cupcakes; the slashes mean some are being taken away. Select the picture that matches the text, then complete the equation to find the solution!
    Match and Solve: Cupcakes Problem Worksheet
    Worksheet
    Understanding Pictures as Equations Worksheet
    Understanding Pictures as Equations Worksheet

    Understanding Pictures as Equations Worksheet

    This worksheet helps your child interpret pictures into numbers and equations. Colourful grapes, ladybirds, balls and cups represent numbers which must be added to reach the total. Your child must also choose the equations that match the pictures correctly. A great way to practice math!
    Understanding Pictures as Equations Worksheet
    Worksheet
    Subtracting: Groceries with Georgio Worksheet
    Subtracting: Groceries with Georgio Worksheet

    Subtracting: Groceries with Georgio Worksheet

    Help Georgio in his grocery orders with this fun worksheet! Using colorful pictures and one-to-one representation, kids can intuitively choose the correct subtraction equation to match the picture. The free PDF makes it easy to practice basic subtraction equations without even realizing they're learning.
    Subtracting: Groceries with Georgio Worksheet
    Worksheet
    Subtracting with Base Blocks Worksheet
    Subtracting with Base Blocks Worksheet

    Subtracting with Base Blocks Worksheet

    Little mathematicians can use base ten blocks to understand place value for subtraction. This worksheet helps them cross out blocks to solve problems with accuracy. Seeing equations like this boosts their number reasoning skills and helps them work with larger numbers.
    Subtracting with Base Blocks Worksheet
    Worksheet
    Adding Instruments with Addison Worksheet
    Adding Instruments with Addison Worksheet

    Adding Instruments with Addison Worksheet

    Your math stars will enjoy assisting Addison as he adds his instruments. This worksheet has 10 basic addition problems with pictures of instruments to aid children. They match the pics and sentences, then connect them to the correct problem using the lines. A fun way to learn and practice addition!
    Adding Instruments with Addison Worksheet
    Worksheet
    Counting with Drawings:Fruits & Flowers Worksheet
    Counting with Drawings:Fruits & Flowers Worksheet

    Counting with Drawings:Fruits & Flowers Worksheet

    At Kids Academy, we know pictures make math come alive and make sense. This worksheet is perfect for early learners to practice word problems. Kids read each problem and count the images that represent the numbers, then solve the problem with addition or subtraction to get the right answer.
    Counting with Drawings:Fruits & Flowers Worksheet
    Worksheet
    Subtraction printable worksheet: fruit and veggies
    Subtraction printable worksheet: fruit and veggies

    Fruit and Veggies Subtraction Worksheet

    Kids learn subtraction with this fun worksheet: fruits and veggies! Kids use pictures to count or take away to get the right answer, aiding in understanding subtraction better.
    Fruit and Veggies Subtraction Worksheet
    Worksheet
    Adding Instruments with Isla Worksheet
    Adding Instruments with Isla Worksheet

    Adding Instruments with Isla Worksheet

    Your kids can have fun helping Isla add her musical instruments. With colorful pics and one-to-one representation, they can pick the correct addition sentence. They can connect each pic with traceable lines and get to the right sum up to 10.
    Adding Instruments with Isla Worksheet
    Worksheet