Colombia · Grado 2 · Practice Sheet 45

1. 1.

   Fill in the missing number: 10 + ___ = 16.

   Formula:Missing Addend

   $b = \text{total} - a$

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2. 2.

   How many tens are there in the number 13?

   Formula:Place Value

   $\text{value} = \text{tens} \times 10 + \text{ones}$

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3. 3.

   Fill in the missing number: 5 + ___ = 9.

   Formula:Missing Addend

   $b = \text{total} - a$

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4. 4.

   How many tens are there in the number 34?

   Formula:Place Value

   $\text{value} = \text{tens} \times 10 + \text{ones}$

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5. 5.

   What is 6 × 3?

   Formula:Multiplication (Times Tables)

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

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6. 6.

   There are 3 bags with 6 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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7. 7.

   Fill in the missing number: 3 + ___ = 11.

   Formula:Missing Addend

   $b = \text{total} - a$

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8. 8.

   What is double 9?

   Formula:Doubling

   $d = 2 \times n$

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9. 9.

   What is 3 + 7?

   Formula:Addition

   $\text{sum} = a + b$

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10. 10.

    Fill in the missing number: 11 + ___ = 18.

    Formula:Missing Addend

    $b = \text{total} - a$

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11. 11.

    What is double 23?

    Formula:Doubling

    $d = 2 \times n$

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12. 12.

    Add 11 + 3 + 17.

    Formula:Addition of Three Numbers

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

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13. 13.

    How many tens are there in the number 83?

    Formula:Place Value

    $\text{value} = \text{tens} \times 10 + \text{ones}$

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14. 14.

    You have $3 and $5. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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15. 15.

    What is double 23?

    Formula:Doubling

    $d = 2 \times n$

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16. 16.

    What is half of 10?

    Formula:Halving

    $h = n \div 2$

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17. 17.

    Add 8 + 7 + 2.

    Formula:Addition of Three Numbers

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

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18. 18.

    What is double 6?

    Formula:Doubling

    $d = 2 \times n$

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19. 19.

    There are 6 bags with 8 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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20. 20.

    What is half of 16?

    Formula:Halving

    $h = n \div 2$

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