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Addition Within 20: Grade 1 Math Test – PDF Download

    Addition Within 20 – Grade 1 math test

    This grade 1 addition within 20 test checks addition within 20 in 45 minutes, with 8 questions for a total of 20 points.

    This 30-minute test checks adding within 20. It has 8 questions worth 20 points in all. Children write number sentences, use a number line, add three numbers, and solve story problems (1.OA.A.1, 1.OA.B.3, 1.OA.C.6). Read each question aloud if needed.

    Test information
    • Grade: Grade 1
    • Chapter: Addition Within 20
    • Common Core: 1.OA.A.1, 1.OA.B.3, 1.OA.C.6, 1.OA.C.5
    • Time: 30 minutes
    • Total: 20 points (Question 1: 2 pts; Question 2: 2 pts; Question 3: 2 pts; Question 4: 2 pts; Question 5: 2 pts; Question 6: 3 pts; Question 7: 3 pts; Question 8: 4 pts)

    Grade 1 Addition Within 20 Test: questions 1–5

    Question 1: Counters (2 points)

    Look at the picture.

    Gray and white counters.
    1. Write an addition expression with the number of gray counters and the number of white counters. (1 point)
    2. Find the total. (1 point)

    Question 2: Find the sums (2 points)

    1. Find \(9+7\). (1 point)
    2. Find \(6+6\). (1 point)

    Question 3: Hops on a number line (2 points)

    Mei hopped on the number line.

    0123456789101112131415+3+5
    Mei started at 5.
    1. Write an addition sentence for her hops. (1 point)
    2. Where did she stop? (1 point)

    Question 4: Switch the numbers (2 points)

    1. Write \(7+9\) with the numbers in the other order. (1 point)
    2. Find the sum. (1 point)

    Question 5: Three numbers (2 points)

    1. Find \(6+4+8\). (1 point)
    2. Find \(3+9+7\). (1 point)

    Grade 1 Addition Within 20 Test: questions 6–8

    Question 6: Cookie sale (3 points)

    Priya sold 9 cookies on Saturday. She sold 8 cookies on Sunday.

    1. Write an addition sentence to show the story. (1 point)
    2. How many cookies did she sell in all? (1 point)
    3. Write a different addition sentence with the same numbers. (1 point)

    Question 7: Blocks (3 points)

    Aisha has 8 red blocks and 7 blue blocks.

    ?8 red7 blue
    Red and blue blocks.
    1. How many blocks does Aisha have in all? (1 point)
    2. Write the addition sentence. (1 point)
    3. Noah has 15 blocks. Nine are red and the rest are blue. How many blue blocks does he have? (1 point)

    Question 8: Missing numbers (4 points)

    Write the missing number.

    1. \(8+\text{ __ }=15\) (1 point)
    2. \(\text{ __ }+6=14\) (1 point)
    3. \(9+\text{ __ }=17\) (1 point)
    4. \(5+\text{ __ }=11\) (1 point)

    Addition Within 20: Grade 1 test answer key

    How to use this grade 1 addition within 20 test

    Take this grade 1 addition within 20 test without notes, then grade it with the test answer key out of 20 points.

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