Rectangular Arrays

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Answer Key & Explanations

Rectangular Arrays · Grade 2 · Worksheet 3

1. Lily is arranging her sticker collection into rows. She makes 4 rows with 6 stickers in each row. How many stickers does Lily have in total? Answer: 24 Solution: Lily has 4 rows of stickers. Each row contains 6 stickers. To find the total number of stickers, multiply the number of rows by the number of stickers in each row.
   Full step-by-step solution

   Lily has 4 rows of stickers. Each row contains 6 stickers. To find the total number of stickers, multiply the number of rows by the number of stickers in each row. Step 1: Write the multiplication expression. 4 rows × 6 stickers per row Step 2: Perform the multiplication. 4 × 6 = 24 Step 3: Interpret the result. The total number of stickers is 24. ANSWER: 24

2. Emma is arranging her sticker collection on a poster board. She puts 5 stickers in each row and makes 7 rows. How many stickers does Emma have in total? Answer: 35 Solution: Emma has 7 rows of stickers. Each row has 5 stickers. To find the total, multiply the number of rows by the number of stickers in each row: 7 × 5 7 × 5 = 35 The answer is 35.
   Full step-by-step solution

   Step 1: Emma has 7 rows of stickers. Step 2: Each row has 5 stickers. Step 3: To find the total, multiply the number of rows by the number of stickers in each row: 7 × 5 Step 4: 7 × 5 = 35 The answer is 35.

3. Isabella is arranging cookies on a baking tray. Isabella makes 9 rows with 3 cookies in each row. How many cookies are on the tray? Answer: 27 Solution: Count the rows of cookies: 9 rows. Count the cookies in each row: 3 cookies. Add the cookies in each row: 3 + 3 + 3 (written 9 times) = 27.
   Full step-by-step solution

   Step 1: Count the rows of cookies: 9 rows. Step 2: Count the cookies in each row: 3 cookies. Step 3: Add the cookies in each row: 3 + 3 + 3 (written 9 times) = 27. The answer is 27 cookies.