This grade 3 multiplication worksheet answer key solves all 25 problems of the multiplication and division facts within 100 worksheet step by step.
Each problem below has a full worked solution, with the final answer in bold. Use the key to check your thinking as well as your answers. For any fact you miss, write its whole fact family and practice it again tomorrow.
Grade 3 Multiplication Worksheet Answer Key: problems 1–5
Problem 1: Fact family triangle
The product is 24, the biggest number. The other numbers are 4 and 6.
Answer: \(4 \times 6 = 24\), \(6 \times 4 = 24\), \(24 : 4 = 6\), \(24 : 6 = 4\).
Problem 2: Skip count by 5s
Add 5 each time: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50.
Answer: 15, 25, 35, 45.
Problem 3: Double it
Double each number.
- \(2 \times 7 = 7 + 7 =\) 14
- \(2 \times 9 = 9 + 9 =\) 18
- \(2 \times 6 = 6 + 6 =\) 12
- \(2 \times 8 = 8 + 8 =\) 16
Problem 4: Multiply by 5
Skip count by 5s to check.
- \(5 \times 6 =\) 30
- \(5 \times 8 =\) 40
- \(5 \times 4 =\) 20
- \(5 \times 9 =\) 45
Problem 5: Tens, ones, and zero
Ten times a number puts a zero after it. One times a number is that number. Zero times any number is 0.
- \(10 \times 7 =\) 70
- \(1 \times 9 =\) 9
- \(0 \times 8 =\) 0
- \(10 \times 4 =\) 40
Grade 3 Multiplication Worksheet Answer Key: problems 6–10
Problem 6: The 9s finger trick
Fold down finger 4. There are 3 fingers on the left (3 tens) and 6 fingers on the right (6 ones).
\(30 + 6 = 36\). Answer: \(9 \times 4 = 36\).
Problem 7: Multiply by 9
Check: 5 + 4 = 9, 7 + 2 = 9, 2 + 7 = 9, and 8 + 1 = 9.
- \(9 \times 6 =\) 54
- \(9 \times 8 =\) 72
- \(9 \times 3 =\) 27
- \(9 \times 9 =\) 81
Problem 8: Square numbers
Count the dots in the array: 6 rows of 6 make 36.
- \(6 \times 6 =\) 36
- \(7 \times 7 =\) 49
- \(8 \times 8 =\) 64
- \(9 \times 9 =\) 81
Problem 9: Missing factor
- \(7 \times 8 = 56\): 8
- \(6 \times 7 = 42\): 7
- \(8 \times 9 = 72\): 8
- \(4 \times 8 = 32\): 8
Problem 10: Equal groups
Each group has 8 dots. Division: \(24 : 3 = 8\). Multiplication check: \(3 \times 8 = 24\).
Answer: 8 dots in each group.
Grade 3 Multiplication Worksheet Answer Key: problems 11–15
Problem 11: Divide
Use a multiplication fact to check each one.
- \(18 : 2 =\) 9
- \(35 : 5 =\) 7
- \(40 : 10 =\) 4
- \(27 : 9 =\) 3
Problem 12: Think multiplication
- \(7 \times 8 = 56\), so \(56 : 7 =\) 8
- \(9 \times 5 = 45\), so \(45 : 9 =\) 5
- \(6 \times 6 = 36\), so \(36 : 6 =\) 6
- \(8 \times 8 = 64\), so \(64 : 8 =\) 8
Problem 13: Finish the fact family
The family uses 5, 7, and 35.
- \(7 \times 5 = 35\)
- \(35 : 5 = 7\)
- \(35 : 7 = 5\)
Answer: \(7 \times 5 = 35\), \(35 : 5 = 7\), \(35 : 7 = 5\).
Problem 14: Break apart a square
Since \(8 = 4 + 4\), the missing number is 4. Now \(8 \times 4 = 32\) and \(8 \times 4 = 32\). Add: \(32 + 32 = 64\).
Answer: 4 and \(8 \times 8 = 64\).
Problem 15: Break apart with a picture
Each part is 6 rows by 4 columns: \(6 \times 4 = 24\).
\(24 + 24 = 48\). Answer: \(6 \times 8 = 48\).
Grade 3 Multiplication Worksheet Answer Key: problems 16–20
Problem 16: Use the table
Go across row 7 and down column 8, and you land on 56. Go across row 8 and down column 7, and you also land on 56.
Answer: \(7 \times 8 = 56\) and \(8 \times 7 = 56\). The products match because the factors were swapped.
Problem 17: Fact fluency mix
- \(3 \times 8 =\) 24
- \(4 \times 7 =\) 28
- \(6 \times 9 =\) 54
- \(9 \times 5 =\) 45
- \(8 \times 6 =\) 48
- \(7 \times 9 =\) 63
Problem 18: Division fluency mix
- \(42 : 6 =\) 7
- \(63 : 7 =\) 9
- \(81 : 9 =\) 9
- \(48 : 8 =\) 6
- \(72 : 9 =\) 8
- \(36 : 4 =\) 9
Problem 19: Compare the products
- \(6 \times 8 = 48\) and \(7 \times 7 = 49\). Since 49 is greater than 48, \(7 \times 7\) is greater.
- \(9 \times 4 = 36\) and \(6 \times 6 = 36\). Both are 36, so yes, they are equal.
Problem 20: Apple baskets
Equal groups: \(9 \times 4 = 36\).
Answer: 36 apples.
Grade 3 Multiplication Worksheet Answer Key: problems 21–25
Problem 21: Sticker pages
Divide: \(45 : 5 = 9\). Check: \(9 \times 5 = 45\).
Answer: 9 pages.
Problem 22: Muffin boxes
Step 1: total muffins \(8 \times 6 = 48\).
Step 2: muffins per box \(48 : 6 = 8\).
Answer: 8 muffins in each box.
Problem 23: Little League teams
Divide: \(72 : 9 = 8\). Check: \(9 \times 8 = 72\).
Answer: 8 players on each team.
Problem 24: Sticker packs
Diego: \(4 \times 8 = 32\). Liam: \(6 \times 8 = 48\). Together: \(32 + 48 = 80\).
Check: the boys have \(4 + 6 = 10\) packs of 8, and \(10 \times 8 = 80\).
Answer: 80 stickers.
Problem 25: School store shopping
Notebooks: \(7 \times \$3 = \$21\). Pencils: \(9 \times \$2 = \$18\).
Total: \(\$21 + \$18 = \$39\).
Answer: $39.
How to use this grade 3 multiplication worksheet answer key
Read this grade 3 multiplication worksheet answer key after trying each problem yourself, and redo any problem you missed.
See every chapter on the Grade 3 math page.