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2D and 3D Shapes: Grade 1 Math Worksheet – PDF Download

    This grade 1 shapes worksheet gives 23 problems on 2d and 3d shapes, ordered from easy to hard, with a separate answer key.

    These 23 problems practice 2D and 3D shapes. Students name shapes, count sides and corners, decide which attributes are defining, and put shapes together to make new shapes (1.G.A.1 and 1.G.A.2).

    The first problems are about naming and counting. The last six are short word problems with shapes and solids.

    Grade 1Common Core: 1.G.A.1 · 1.G.A.2

    Grade 1 Shapes Worksheet: problems 1–5

    Problem 1: Naming shapes

    Look at the shapes. Which letter shows the triangle?

    ABCD
    Shapes A, B, C and D.

    Problem 2: Counting sides

    How many sides does this shape have?

    Count each straight side.

    Problem 3: Counting corners

    How many corners does this triangle have?

    A turned triangle.

    Problem 4: Square or rectangle

    A shape has 4 sides that are all the same length. It has 4 square corners. What is the shape?

    Problem 5: Round shapes

    Answer yes or no. (a) Does a circle have straight sides? (b) Does a circle have corners?

    Grade 1 Shapes Worksheet: problems 6–10

    Problem 6: Color does not matter

    Ben colored one triangle blue and one triangle orange. Are both shapes triangles? Write yes or no.

    blueorange
    Two triangles.

    Problem 7: Size and turn

    Are all three shapes triangles? Write yes or no.

    ABC
    Shapes A, B and C.

    Problem 8: Defining or not

    Here are facts about a triangle. Write D if the fact is a defining attribute. Write N if it is not.

    1. It has 3 straight sides.
    2. It is red.
    3. It points up.
    4. It is closed.

    Problem 9: Not a triangle

    Which shapes are NOT triangles? Write the letters.

    ABCD
    Shapes A, B, C and D.

    Problem 10: Drawing a shape

    Draw a closed shape with 4 sides of the same length and 4 square corners. Write its name.

    Grade 1 Shapes Worksheet: problems 11–15

    Problem 11: Name the solid

    Which solid is the cone? Write the letter.

    ABCD
    Solids A, B, C and D.

    Problem 12: Solids in real life

    Write the name of the 3D shape. Use cube, cone, or cylinder.

    1. a can of soup
    2. a party hat
    3. a number cube

    Problem 13: No circles

    A cube, a cone, and a cylinder are shown. Which 3D shape has NO flat circle?

    cubeconecylinder
    Three solids.

    Problem 14: Two triangles

    Two triangles of the same size are slid together along their longest sides. What shape do they make?

    +2 triangles
    Two triangles.

    Problem 15: Two squares

    Two squares of the same size touch along one side. What shape do they make?

    +2 squares
    Two squares.

    Grade 1 Shapes Worksheet: problems 16–20

    Problem 16: Two half circles

    Two half circles of the same size are put together along the straight edge. What shape do they make?

    +2 half circles
    Two half circles.

    Problem 17: Counting cubes

    Count the cubes in the tower. How many cubes are there?

    A tower of cubes.

    Problem 18: Sofia builds a house

    Sofia builds a house from a square and a triangle. How many sides do the two shapes have in all?

    trianglesquare
    A square and a triangle make a house.

    Problem 19: Jamal joins squares

    Jamal has 6 squares. He joins 2 squares to make each rectangle. How many rectangles can he make?

    Six squares.

    Problem 20: Two towers

    Mei builds a tower of 4 cubes. Noah builds a tower of 3 cubes. How many cubes do they use in all?

    Two towers.

    Grade 1 Shapes Worksheet: problems 21–23

    Problem 21: Aisha cuts squares

    Aisha cuts each square from corner to corner. Each square becomes 2 triangles. How many triangles will she have from 3 squares?

    Three cut squares.

    Problem 22: Mystery shape

    Diego says: “I have 4 sides that are the same length and 4 square corners.” (a) What shape is Diego describing? (b) How many corners do 2 of these shapes have in all?

    Problem 23: Sorting solids

    Liam sorted his solids. (a) How many solids does Liam have in all? (b) How many more cylinders than cubes does he have?

    ConesCylindersCubes
    Liam’s solids.

    2D and 3D Shapes: Grade 1 worksheet answer key

    How to use this grade 1 shapes worksheet

    Print this grade 1 shapes worksheet as a PDF, solve every problem on paper, then compare with the answer key.

    Next step after this grade 1 shapes worksheet: 2D and 3D Shapes worksheet answer key

    Printable PDF · Worksheet

    Grade 1 2D and 3D Shapes worksheet

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    See every chapter on the Grade 1 math page.

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