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Mexico · Grado 3 · Practice Sheet 21

Sheet code: MEXICO-G3-S21 · 20 questions

Name: ______________
Date: ______________
  1. 1.

    Continue the pattern by counting in 3s: 12, 15, ___

    Formula:Skip Counting
    next=term+step\text{next} = \text{term} + \text{step}
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  2. 2.

    There are 2 bags with 3 apples in each bag. How many apples are there in total?

    Formula:Multiplication as Repeated Addition
    total=groups×size\text{total} = \text{groups} \times \text{size}
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  3. 3.

    What is double 25?

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

    Add 33 and 57.

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

    Fill in the missing number: 12 + ___ = 20.

    Formula:Missing Addend
    b=total−ab = \text{total} - a
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  6. 6.

    Add 16 + 7 + 10.

    Formula:Addition of Three Numbers
    sum=a+b+c\text{sum} = a + b + c
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  7. 7.

    Continue the pattern by counting in 2s: 8, 10, ___

    Formula:Skip Counting
    next=term+step\text{next} = \text{term} + \text{step}
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  8. 8.

    Add 15 + 5 + 16.

    Formula:Addition of Three Numbers
    sum=a+b+c\text{sum} = a + b + c
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  9. 9.

    You have $8 and $7. How much money do you have altogether?

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

    Fill in the missing number: 12 + ___ = 27.

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

    Add 71 and 29.

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

    Subtract 23 from 31.

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

    You have $5 and $9. How much money do you have altogether?

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

    Add 56 and 56.

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

    What is 10 × 6?

    Formula:Multiplication (Times Tables)
    product=a×b\text{product} = a \times b
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  16. 16.

    You have $9 and $2. How much money do you have altogether?

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

    Add 11 and 11.

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

    There are 3 bags with 3 apples in each bag. How many apples are there in total?

    Formula:Multiplication as Repeated Addition
    total=groups×size\text{total} = \text{groups} \times \text{size}
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  19. 19.

    How many tens are there in the number 30?

    Formula:Place Value
    value=tens×10+ones\text{value} = \text{tens} \times 10 + \text{ones}
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  20. 20.

    Subtract 20 from 33.

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