Thailand · Grade 2 · Practice Sheet 45

1. 1.

   What is 2 + 2?

   Formula:Addition

   $\text{sum} = a + b$

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2. 2.

   What is double 15?

   Formula:Doubling

   $d = 2 \times n$

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3. 3.

   Add 19 + 18 + 2.

   Formula:Addition of Three Numbers

   $\text{sum} = a + b + c$

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4. 4.

   Continue the pattern by counting in 10s: 0, 10, ___

   Formula:Skip Counting

   $\text{next} = \text{term} + \text{step}$

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5. 5.

   What is half of 48?

   Formula:Halving

   $h = n \div 2$

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6. 6.

   Subtract 55 from 81.

   Formula:Subtraction

   $\text{difference} = a - b$

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7. 7.

   What is double 2?

   Formula:Doubling

   $d = 2 \times n$

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8. 8.

   Fill in the missing number: 7 + ___ = 9.

   Formula:Missing Addend

   $b = \text{total} - a$

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9. 9.

   Add 19 + 17 + 10.

   Formula:Addition of Three Numbers

   $\text{sum} = a + b + c$

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10. 10.

    What is double 25?

    Formula:Doubling

    $d = 2 \times n$

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11. 11.

    What is half of 16?

    Formula:Halving

    $h = n \div 2$

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12. 12.

    What is double 24?

    Formula:Doubling

    $d = 2 \times n$

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13. 13.

    Fill in the missing number: 13 + ___ = 22.

    Formula:Missing Addend

    $b = \text{total} - a$

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14. 14.

    What is double 18?

    Formula:Doubling

    $d = 2 \times n$

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15. 15.

    Continue the pattern by counting in 2s: 0, 2, ___

    Formula:Skip Counting

    $\text{next} = \text{term} + \text{step}$

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16. 16.

    What is double 18?

    Formula:Doubling

    $d = 2 \times n$

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17. 17.

    Fill in the missing number: 12 + ___ = 25.

    Formula:Missing Addend

    $b = \text{total} - a$

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18. 18.

    Continue the pattern by counting in 5s: 5, 10, ___

    Formula:Skip Counting

    $\text{next} = \text{term} + \text{step}$

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19. 19.

    What is double 24?

    Formula:Doubling

    $d = 2 \times n$

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20. 20.

    What is half of 10?

    Formula:Halving

    $h = n \div 2$

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