This multiplication meaning answers for 3rd Grade covers understanding multiplication (Common Core 3.OA.A.1, 3.OA.A.3), with a free PDF to print.
This answer key gives a full solution for each of the 20 problems on the multiplication meaning worksheet. Compare the steps with your own work, check the equation first, and then check the product by repeated addition or skip counting.
Grade 3 · Common Core State Standards: 3.OA.A.1, 3.OA.A.3
Multiplication meaning answers: exercises 1 to 10
Exercise 1 – Groups in a product
The first factor is the number of groups and the second is the size of each group. So \(8 \times 3\) means 8 groups of 3. Answer: 8 groups, 3 in each group.
Exercise 2 – Count the groups
There are 3 boxes with 5 dots in each box. Equation: \(3 \times 5 = 15\). Check by adding: \(5 + 5 + 5 = 15\). Answer: 15 dots.
Each box holds 5, and 3 boxes hold 15.
Exercise 3 – Repeated addition
\(7 \times 3\) is 7 groups of 3, so add 3 seven times: \(3 + 3 + 3 + 3 + 3 + 3 + 3 = 21\). Answer: 21.
Exercise 4 – Read the array
Count 5 rows with 6 dots in each row. Equation: \(5 \times 6 = 30\). Answer: 30 dots.
Exercise 5 – Meaning of each factor
The 9 is the number of groups. The 4 is the number in each group. The 36 is the product, the total in all. Answer: 9 groups of 4 make 36.
Exercise 6 – Jumps on a number line
There are 4 jumps of 5. Equation: \(4 \times 5 = 20\). Count by 5s: 5, 10, 15, 20. Answer: 20 feet.
The rabbit lands on 20.
Exercise 7 – Shelves of books
6 shelves with 5 books on each shelf: \(6 \times 5 = 30\). Answer: 30 books.
7 groups of $3: \(7 \times 3 = 21\). Answer: \(\$21\).
Exercises 11 and up
Exercise 11 – Unknown product
\(9 \times 3\) means 9 groups of 3. Count by 3s nine times: 3, 6, 9, 12, 15, 18, 21, 24, 27. Answer: \(n = 27\).
Exercise 12 – Repeated addition check
\(5 \times 4\) is 5 groups of 4, so there must be five 4s. Mei added only four 4s, and \(4 + 4 + 4 + 4 = 16\). The correct sum is \(4 + 4 + 4 + 4 + 4 = 20\). Answer: No, she is not correct.
Exercise 13 – Tape diagram of sticker books
There are 6 equal parts of 7: \(6 \times 7 = 42\). Answer: 42.
The total is 42.
Exercise 14 – Fix the equation
3 groups of 6 need three 6s: \(6 + 6 + 6 = 18\). Answer: \(3 \times 6 = 18\).
A letter or symbol can stand for the unknown product, as in 5 × 8 = n.
How to use this multiplication meaning answers
Cover each solution, solve the exercise again, then uncover it and compare every line. If your answer differs, find the first step that changed and redo the exercise from there.
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Perimeter Test with Point Values
