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South Korea · Grade 1 · Practice Sheet 47

Sheet code: SOUTH-KOREA-G1-S47 · 20 questions

Name: ______________
Date: ______________
  1. 1.

    Add 61 and 29.

    Formula:Addition
    sum=a+b\text{sum} = a + b
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  2. 2.

    What is 8 − 7?

    Formula:Subtraction
    difference=a−b\text{difference} = a - b
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  3. 3.

    What is 3 + 1?

    Formula:Addition
    sum=a+b\text{sum} = a + b
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  4. 4.

    You have ₩1 and ₩4. How much money do you have altogether?

    Formula:Adding Money
    total=a+b\text{total} = a + b
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  5. 5.

    What is double 25?

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

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

    Formula:Adding Money
    total=a+b\text{total} = a + b
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  7. 7.

    Fill in the missing number: 10 + ___ = 21.

    Formula:Missing Addend
    b=total−ab = \text{total} - a
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  8. 8.

    What is double 3?

    Formula:Doubling
    d=2×nd = 2 \times n
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  9. 9.

    What is 10 − 2?

    Formula:Subtraction
    difference=a−b\text{difference} = a - b
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  10. 10.

    Fill in the missing number: 2 + ___ = 12.

    Formula:Missing Addend
    b=total−ab = \text{total} - a
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  11. 11.

    Add 68 and 57.

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

    What is 12 − 8?

    Formula:Subtraction
    difference=a−b\text{difference} = a - b
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  13. 13.

    You have ₩3 and ₩1. 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 double 9?

    Formula:Doubling
    d=2×nd = 2 \times n
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  15. 15.

    You have ₩9 and ₩7. How much money do you have altogether?

    Formula:Adding Money
    total=a+b\text{total} = a + b
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  16. 16.

    Fill in the missing number: 3 + ___ = 6.

    Formula:Missing Addend
    b=total−ab = \text{total} - a
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  17. 17.

    What is double 11?

    Formula:Doubling
    d=2×nd = 2 \times n
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  18. 18.

    What is 9 − 7?

    Formula:Subtraction
    difference=a−b\text{difference} = a - b
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  19. 19.

    What is 6 + 8?

    Formula:Addition
    sum=a+b\text{sum} = a + b
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  20. 20.

    What is double 24?

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