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✖️ 2nd grade math · Multiply & Divide

Arrays: rows and columns

Each row has the same number of squares. Add that number once for every row.

Worked example

A rectangle is cut into 4 rows of squares, with 2 squares in each row. How many squares are in the rectangle?
Answer: 8
There are 4 rows with 2 squares in each. Add the rows: 2 + 2 + 2 + 2 = 8. (That is 4 × 2.) Answer: 8.

For grown-ups: Arrays up to 5×5 as repeated addition. Below: three problems to try with the worked answers, and a free printable sheet. Children can practise the same skill as a game, with no sign-up and no ads.

  • CCSS 2.OA.C.4
What this practises, for teachers

Practices arrays up to 5×5 as repeated addition (2.OA.C.4). A printable sheet with its answer key, worked answers on the page, no accounts.

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For your class

🖨️ Printable sheet and key

On the board with this skill:

More printables, with answer keys, for this grade:

Try three

  1. A rectangle is made of squares: 4 rows, with 3 squares in each row. Which addition adds up the rows (the same number 4 times)?
    Show the answer and how
    Answer: 3 + 3 + 3 + 3
    Each row has 3 squares, and there are 4 rows. Add the rows: 3 + 3 + 3 + 3 = 12.
  2. How many squares are in this rectangle? It is cut into rows and columns of squares.
    Show the answer and how
    Answer: 25
    There are 5 rows with 5 squares in each. Add the rows: 5 + 5 + 5 + 5 + 5 = 25. (That is 5 × 5.) Answer: 25.
  3. A rectangle is cut into 4 rows of squares, with 3 squares in each row. How many squares are in the rectangle?
    Show the answer and how
    Answer: 12
    There are 4 rows with 3 squares in each. Add the rows: 3 + 3 + 3 + 3 = 12. (That is 4 × 3.) Answer: 12.

Before and after

Learn first: Add and subtract to 100 (2nd)

Comes next: Equal groups (3rd), Share and divide (3rd)

Name: ____________________Date: ____________Score: ____ / 12

Arrays: rows and columns (2nd grade)

  1. A rectangle is cut into 2 rows of squares, with 6 squares in each row. How many squares are in the rectangle?
  2. How many squares are in this rectangle? It is cut into rows and columns of squares.
  3. A rectangle is made of squares: 4 rows, with 4 squares in each row. Which addition adds up the rows (the same number 4 times)?
  4. How many squares are in this rectangle? It is cut into rows and columns of squares.
  5. A rectangle is cut into 2 rows of squares, with 3 squares in each row. How many squares are in the rectangle?
  6. A rectangle is made of squares: 4 rows, with 6 squares in each row. Which addition adds up the rows (the same number 4 times)?
  7. A rectangle is cut into 3 rows of squares, with 2 squares in each row. How many squares are in the rectangle?
  8. How many squares are in this rectangle? It is cut into rows and columns of squares.
  9. A rectangle is cut into 5 rows of squares, with 5 squares in each row. How many squares are in the rectangle?
  10. How many squares are in this rectangle? It is cut into rows and columns of squares.
  11. A rectangle is made of squares: 2 rows, with 3 squares in each row. Which addition adds up the rows (the same number 2 times)?
  12. A rectangle is cut into 3 rows of squares, with 4 squares in each row. How many squares are in the rectangle?

Answer key

  1. 12
  2. 15
  3. 4 + 4 + 4 + 4
  4. 9
  5. 6
  6. 6 + 6 + 6 + 6
  7. 6
  8. 15
  9. 25
  10. 10
  11. 3 + 3
  12. 12

More 2nd grade skills: all 2nd grade math skills, or every grade at math skills.