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Multiplication Concept

Grade 3 · Mathematics · Worksheet 1

  1. Liam is helping his teacher set up chairs for the school concert. He arranges them in 8 rows with 12 chairs in each row. How many chairs does Liam arrange in total?
    Answer: ______________
  2. Noah is organizing a charity bake sale for his school. He needs to make cookie trays for 8 different classrooms. Each classroom will receive a tray with 15 cookies. How many cookies does Noah need to bake in total? Answer: ______________
  3. Emma is helping organize books for the school library book fair. She needs to pack books into boxes. Each box can hold 24 books, and she has 9 boxes to fill. How many books can Emma pack in total? Answer: ______________
  4. The city park is planting new flower beds for spring. Each flower bed will have 65 tulip bulbs planted in it. If the park workers need to prepare 8 flower beds, how many tulip bulbs do they need in total? Answer: ______________
  5. Liam is helping his teacher set up chairs for the school concert. Each row has 15 chairs, and they need to set up 8 rows. How many chairs do they need in total? Answer: ______________
  6. 25 + 25 + 25 + 25 = ? × 25 Answer: ______________
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Answer Key & Explanations

Multiplication Concept · Grade 3 · Worksheet 1

  1. Liam is helping his teacher set up chairs for the school concert. He arranges them in 8 rows with 12 chairs in each row. How many chairs does Liam arrange in total? Answer: 96 Solution: Liam arranges chairs in 8 rows, and each row has 12 chairs. To find the total number of chairs, we multiply the number of rows by the number of chairs in each row. Write the multiplication expression.
    Full step-by-step solution

    Liam arranges chairs in 8 rows, and each row has 12 chairs. To find the total number of chairs, we multiply the number of rows by the number of chairs in each row. Step 1: Write the multiplication expression. Total chairs = 8 × 12 Step 2: Break it down for easier calculation if needed. 8 × 12 = 8 × (10 + 2) Step 3: Multiply each part. 8 × 10 = 80 8 × 2 = 16 Step 4: Add the results. 80 + 16 = 96 So, Liam arranges 96 chairs in total.

  2. Noah is organizing a charity bake sale for his school. He needs to make cookie trays for 8 different classrooms. Each classroom will receive a tray with 15 cookies. How many cookies does Noah need to bake in total? Answer: 120 Solution: Noah needs to make cookie trays for 8 classrooms. Each tray has 15 cookies. To find the total number of cookies, we can think of this as 15 + 15 + 15 + 15 + 15 + 15 + 15 + 15.
    Full step-by-step solution

    Step 1: Noah needs to make cookie trays for 8 classrooms. Step 2: Each tray has 15 cookies. Step 3: To find the total number of cookies, we can think of this as 15 + 15 + 15 + 15 + 15 + 15 + 15 + 15. Step 4: 15 + 15 = 30 Step 5: 30 + 15 = 45 Step 6: 45 + 15 = 60 Step 7: 60 + 15 = 75 Step 8: 75 + 15 = 90 Step 9: 90 + 15 = 105 Step 10: 105 + 15 = 120 Noah needs to bake 120 cookies in total.

  3. Emma is helping organize books for the school library book fair. She needs to pack books into boxes. Each box can hold 24 books, and she has 9 boxes to fill. How many books can Emma pack in total? Answer: 216 Solution: Each box holds 24 books There are 9 boxes To find the total number of books, multiply 24 by 9 24 × 9 = 216 Emma can pack 216 books in total.
    Full step-by-step solution

    Step 1: Each box holds 24 books Step 2: There are 9 boxes Step 3: To find the total number of books, multiply 24 by 9 Step 4: 24 × 9 = 216 Emma can pack 216 books in total.

  4. The city park is planting new flower beds for spring. Each flower bed will have 65 tulip bulbs planted in it. If the park workers need to prepare 8 flower beds, how many tulip bulbs do they need in total? Answer: 520 Solution: Each flower bed needs 65 tulip bulbs There are 8 flower beds total To find the total number of bulbs, multiply 65 × 8 Calculate 65 × 8 = 520 The park needs 520 tulip bulbs in total The answer is 520.
    Full step-by-step solution

    Step 1: Each flower bed needs 65 tulip bulbs Step 2: There are 8 flower beds total Step 3: To find the total number of bulbs, multiply 65 × 8 Step 4: Calculate 65 × 8 = 520 Step 5: The park needs 520 tulip bulbs in total The answer is 520.

  5. Liam is helping his teacher set up chairs for the school concert. Each row has 15 chairs, and they need to set up 8 rows. How many chairs do they need in total? Answer: 120 Solution: We are told that each row has 15 chairs and there are 8 rows. To find the total number of chairs, we multiply the number of chairs per row by the number of rows. Write the multiplication expression.
    Full step-by-step solution

    We are told that each row has 15 chairs and there are 8 rows. To find the total number of chairs, we multiply the number of chairs per row by the number of rows. Step 1: Write the multiplication expression. Total chairs = 15 chairs/row × 8 rows Step 2: Break it down for clarity. 15 × 8 = 15 × (10 - 2) But let's compute directly: 15 × 8 = (10 × 8) + (5 × 8) Step 3: Calculate each part. 10 × 8 = 80 5 × 8 = 40 Step 4: Add them together. 80 + 40 = 120 Step 5: Conclusion. They need 120 chairs in total. Final answer: 120

  6. 25 + 25 + 25 + 25 = ? × 25 Answer: 4 Solution: Count the number of times 25 is added: 25 + 25 + 25 + 25 has 4 groups of 25. This repeated addition means 4 × 25.
    Full step-by-step solution

    Step 1: Count the number of times 25 is added: 25 + 25 + 25 + 25 has 4 groups of 25. Step 2: This repeated addition means 4 × 25. Step 3: So the missing number is 4. The answer is 4.