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South Korea · Grade 1 · Practice Sheet 13

Sheet code: SOUTH-KOREA-G1-S13 · 20 questions

Name: ______________
Date: ______________
  1. 1.

    What is 5 + 3?

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

    What is 5 − 4?

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

    Add 79 and 19.

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

    What is 5 + 3?

    Formula:Addition
    sum=a+b\text{sum} = a + b
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  5. 5.

    Add 73 and 35.

    Formula:Addition
    sum=a+b\text{sum} = a + b
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  6. 6.

    What is 11 − 3?

    Formula:Subtraction
    difference=a−b\text{difference} = a - b
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  7. 7.

    Add 54 and 5.

    Formula:Addition
    sum=a+b\text{sum} = a + b
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  8. 8.

    What is 2 + 3?

    Formula:Addition
    sum=a+b\text{sum} = a + b
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  9. 9.

    Add 36 and 53.

    Formula:Addition
    sum=a+b\text{sum} = a + b
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  10. 10.

    What is double 8?

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

    Add 24 and 38.

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

    What is 10 − 1?

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

    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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  14. 14.

    What is 4 + 1?

    Formula:Addition
    sum=a+b\text{sum} = a + b
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  15. 15.

    Fill in the missing number: 15 + ___ = 21.

    Formula:Missing Addend
    b=total−ab = \text{total} - a
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  16. 16.

    What is 1 + 7?

    Formula:Addition
    sum=a+b\text{sum} = a + b
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  17. 17.

    Add 45 and 19.

    Formula:Addition
    sum=a+b\text{sum} = a + b
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  18. 18.

    What is 14 − 6?

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

    Continue the pattern by counting in 2s: 6, 8, ___

    Formula:Skip Counting
    next=term+step\text{next} = \text{term} + \text{step}
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  20. 20.

    Fill in the missing number: 2 + ___ = 14.

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