Ecuador · Grado 2 · Practice Sheet 20

1. 1.

   How many tens are there in the number 54?

   Formula:Place Value

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

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2. 2.

   Fill in the missing number: 4 + ___ = 17.

   Formula:Missing Addend

   $b = \text{total} - a$

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3. 3.

   What is 3 × 7?

   Formula:Multiplication (Times Tables)

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

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4. 4.

   Fill in the missing number: 7 + ___ = 22.

   Formula:Missing Addend

   $b = \text{total} - a$

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5. 5.

   There are 2 bags with 3 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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6. 6.

   What is 2 × 8?

   Formula:Multiplication (Times Tables)

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

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7. 7.

   Continue the pattern by counting in 10s: 40, 50, ___

   Formula:Skip Counting

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

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8. 8.

   What is 10 × 2?

   Formula:Multiplication (Times Tables)

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

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9. 9.

   You have $6 and $2. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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10. 10.

    Fill in the missing number: 15 + ___ = 20.

    Formula:Missing Addend

    $b = \text{total} - a$

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11. 11.

    There are 5 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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12. 12.

    Fill in the missing number: 6 + ___ = 8.

    Formula:Missing Addend

    $b = \text{total} - a$

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13. 13.

    Subtract 34 from 86.

    Formula:Subtraction

    $\text{difference} = a - b$

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14. 14.

    What is 4 + 3?

    Formula:Addition

    $\text{sum} = a + b$

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15. 15.

    What is half of 12?

    Formula:Halving

    $h = n \div 2$

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16. 16.

    Fill in the missing number: 11 + ___ = 21.

    Formula:Missing Addend

    $b = \text{total} - a$

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17. 17.

    What is 3 × 8?

    Formula:Multiplication (Times Tables)

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

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18. 18.

    Add 70 and 40.

    Formula:Addition

    $\text{sum} = a + b$

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19. 19.

    What is 6 × 7?

    Formula:Multiplication (Times Tables)

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

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20. 20.

    You have $7 and $6. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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