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Understanding Multiplication: Grade 3 Math Test Answer Key – PDF Download

    Understanding Multiplication – Grade 3 math test answer key

    This grade 3 multiplication test answer key gives the full solution and the scoring guide for each of the 9 test questions on understanding multiplication.

    Use this answer key to score the multiplication test out of 20 points. Each solution shows the multiplication sentence and the scoring guide. Give partial credit when a student shows the right idea but makes a small counting error.

    Grade 3Common Core: 3.OA.A.1 · 3.OA.A.3

    Grade 3 Multiplication Test Answer Key: questions 1–5

    Question 1: Equal groups (2 points)

    1. \(4 \times 5 = 20\).
    2. The 4 is the number of groups and the 5 is the number of dots in each group.

    Scoring: (a) 1 point for the correct sentence with product 20. (b) 1 point for both meanings.

    Question 2: Array (2 points)

    1. 3 rows with 7 in each row: \(3 \times 7 = 21\).
    2. 21 stickers.

    Scoring: (a) 1 point. (b) 1 point.

    Question 3: Repeated addition (2 points)

    1. 8 is added 6 times : \(6 \times 8 = 48\).
    2. \(7 \times 3 = 21\).

    Scoring: (a) 1 point for the sentence and product. (b) 1 point for the correct sentence.

    Question 4: Number line jumps (2 points)

    04812162024444444
    6 jumps of 4 land on 24.
    1. 6 jumps, each 4 long: \(6 \times 4 = 24\).
    2. The frog lands on 24.

    Scoring: (a) 1 point. (b) 1 point.

    Question 5: Boxes of crayons (2 points)

    8 groups of 4: \(8 \times 4 = 32\).

    Jamal buys 32 crayons.

    Scoring: 1 point for a correct equation. 1 point for the answer of 32 crayons.

    Grade 3 Multiplication Test Answer Key: questions 6–9

    Question 6: Rope lengths (2 points)

    9999945 ft5 equal parts
    5 pieces of rope, each 9 feet long, total 45 feet.

    5 equal pieces of 9 feet: \(5 \times 9 = 45\).

    The total length is 45 feet.

    Scoring: 1 point for choosing multiplication with 5 and 9. 1 point for 45 feet with the unit.

    Question 7: Unknown number (2 points)

    \(6 \times 5 = m\). Skip count by 5: 5, 10, 15, 20, 25, 30.

    \(m = 30\), so Maya has 30 marbles.

    Scoring: 1 point for the equation. 1 point for the solution m = 30.

    Question 8: Muffins and extras (3 points)

    Muffins on trays: \(3 \times 8 = 24\).

    Add the basket: \(24 + 6 = 30\).

    There are 30 muffins in all.

    Scoring: 1 point for 24. 1 point for adding 6. 1 point for the final answer of 30 muffins.

    Question 9: Choose the story (3 points)

    Story (b). In \(3 \times 8\), 3 is the number of groups and 8 is the number in each group. Story (b) has 3 packs of 8 cards: \(3 \times 8 = 24\) cards.

    Story (a) is an addition story, \(3 + 8\). Story (c) has 8 groups of 8, which is \(8 \times 8\).

    Scoring: 1 point for (b). 2 points for a correct explanation (1 point for the meaning of 3 and 8, 1 point for why (a) and (c) do not match).

    Scoring summary

    Total

    20 points: add the points of every question of this grade 3 multiplication test answer key.

    How to use this grade 3 multiplication test answer key

    Use this grade 3 multiplication test answer key to score the test fairly and to see which skills need more practice.

    Next step after this grade 3 multiplication test answer key: Understanding Multiplication quiz

    See every chapter on the Grade 3 math page.

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