Thailand · Grade 2 · Practice Sheet 5

1. 1.

   Fill in the missing number: 13 + ___ = 19.

   Formula:Missing Addend

   $b = \text{total} - a$

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2. 2.

   What is double 18?

   Formula:Doubling

   $d = 2 \times n$

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3. 3.

   What is 18 − 13?

   Formula:Subtraction

   $\text{difference} = a - b$

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4. 4.

   What is half of 18?

   Formula:Halving

   $h = n \div 2$

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5. 5.

   Fill in the missing number: 4 + ___ = 12.

   Formula:Missing Addend

   $b = \text{total} - a$

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6. 6.

   What is double 18?

   Formula:Doubling

   $d = 2 \times n$

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7. 7.

   Subtract 14 from 51.

   Formula:Subtraction

   $\text{difference} = a - b$

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8. 8.

   There are 4 bags with 5 apples in each bag. How many apples are there in total?

   Formula:Multiplication as Repeated Addition

   $\text{total} = \text{groups} \times \text{size}$

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9. 9.

   What is 9 + 3?

   Formula:Addition

   $\text{sum} = a + b$

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10. 10.

    What is 6 × 8?

    Formula:Multiplication (Times Tables)

    $\text{product} = a \times b$

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11. 11.

    What is double 14?

    Formula:Doubling

    $d = 2 \times n$

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12. 12.

    Fill in the missing number: 6 + ___ = 16.

    Formula:Missing Addend

    $b = \text{total} - a$

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13. 13.

    What is half of 16?

    Formula:Halving

    $h = n \div 2$

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14. 14.

    What is 2 × 2?

    Formula:Multiplication (Times Tables)

    $\text{product} = a \times b$

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15. 15.

    What is double 25?

    Formula:Doubling

    $d = 2 \times n$

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16. 16.

    What is half of 12?

    Formula:Halving

    $h = n \div 2$

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17. 17.

    Subtract 50 from 80.

    Formula:Subtraction

    $\text{difference} = a - b$

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18. 18.

    What is double 8?

    Formula:Doubling

    $d = 2 \times n$

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19. 19.

    What is 12 − 9?

    Formula:Subtraction

    $\text{difference} = a - b$

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20. 20.

    What is 4 × 4?

    Formula:Multiplication (Times Tables)

    $\text{product} = a \times b$

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