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Ecuador · Grado 1 · Practice Sheet 21

Sheet code: ECUADOR-G1-S21 · 20 questions

Name: ______________
Date: ______________
  1. 1.

    What is double 12?

    Formula:Doubling
    d=2×nd = 2 \times n
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  2. 2.

    What is 2 + 4?

    Formula:Addition
    sum=a+b\text{sum} = a + b
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  3. 3.

    What is double 23?

    Formula:Doubling
    d=2×nd = 2 \times n
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  4. 4.

    What is 10 − 3?

    Formula:Subtraction
    difference=a−b\text{difference} = a - b
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  5. 5.

    What is double 3?

    Formula:Doubling
    d=2×nd = 2 \times n
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  6. 6.

    Add 16 and 7.

    Formula:Addition
    sum=a+b\text{sum} = a + b
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  7. 7.

    What is 7 − 3?

    Formula:Subtraction
    difference=a−b\text{difference} = a - b
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  8. 8.

    Fill in the missing number: 2 + ___ = 6.

    Formula:Missing Addend
    b=total−ab = \text{total} - a
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  9. 9.

    You have $9 and $3. How much money do you have altogether?

    Formula:Adding Money
    total=a+b\text{total} = a + b
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  10. 10.

    What is double 17?

    Formula:Doubling
    d=2×nd = 2 \times n
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  11. 11.

    Add 20 and 51.

    Formula:Addition
    sum=a+b\text{sum} = a + b
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  12. 12.

    Fill in the missing number: 7 + ___ = 12.

    Formula:Missing Addend
    b=total−ab = \text{total} - a
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  13. 13.

    You have $7 and $5. How much money do you have altogether?

    Formula:Adding Money
    total=a+b\text{total} = a + b
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  14. 14.

    What is 11 − 1?

    Formula:Subtraction
    difference=a−b\text{difference} = a - b
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  15. 15.

    Add 54 and 10.

    Formula:Addition
    sum=a+b\text{sum} = a + b
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  16. 16.

    You have $2 and $1. How much money do you have altogether?

    Formula:Adding Money
    total=a+b\text{total} = a + b
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  17. 17.

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

    Formula:Skip Counting
    next=term+step\text{next} = \text{term} + \text{step}
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  18. 18.

    You have $4 and $8. How much money do you have altogether?

    Formula:Adding Money
    total=a+b\text{total} = a + b
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  19. 19.

    Fill in the missing number: 11 + ___ = 14.

    Formula:Missing Addend
    b=total−ab = \text{total} - a
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  20. 20.

    You have $3 and $2. How much money do you have altogether?

    Formula:Adding Money
    total=a+b\text{total} = a + b
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