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Grade 3 · CogAT

Grade 3 CogAT: Quantitative · Number series

1.

Choose the number that belongs in the blank.

2.

Find the pattern of the rows in the table. Which number is missing?

3.

5, 9, 13, ___, ___. What are the next two numbers?

4.

7, 14, 21, ___, ___. What are the next two numbers?

5.

Which number comes next in this series?

6.

Which number comes next in this series?

7.

11, 14, 17, ___, ___. What are the next two numbers?

8.

Each row and each column follows a number rule. Which number belongs in the empty cell?

9.

Find the pattern of the rows in the table. Which number is missing?

10.

Choose the number that belongs in the blank.

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Answer key

Grade 3 CogAT: Quantitative · Number series

Question numbers match the worksheet.

  1. 1.C) 45Add 6 each time.
  2. 2.C) 54Each row multiplies by 3.
  3. 3.A) 17, 21Add 4 each time.
  4. 4.A) 28, 35Add 7 each time.
  5. 5.B) 42Multiply by 3, then subtract 10, and repeat.
  6. 6.D) 15Add 1, then 2, then 3, then 4.
  7. 7.D) 20, 23Add 3 each time.
  8. 8.B) 6Each step down adds 1; each step right adds 1.
  9. 9.A) 120Each row multiplies by 2.
  10. 10.D) 36Add 4 each time.

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