Vietnam · Grade 3 · Practice Sheet 28

1. 1.

   Add 64 and 46.

   Formula:Addition

   $\text{sum} = a + b$

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2. 2.

   How many tens are there in the number 55?

   Formula:Place Value

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

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3. 3.

   Add 15 + 9 + 11.

   Formula:Addition of Three Numbers

   $\text{sum} = a + b + c$

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4. 4.

   What is 5 × 9?

   Formula:Multiplication (Times Tables)

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

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5. 5.

   Add 88 and 57.

   Formula:Addition

   $\text{sum} = a + b$

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6. 6.

   You have VND 6 and VND 8. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

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7. 7.

   Continue the pattern by counting in 5s: 20, 25, ___

   Formula:Skip Counting

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

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8. 8.

   Subtract 11 from 45.

   Formula:Subtraction

   $\text{difference} = a - b$

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9. 9.

   Add 24 and 54.

   Formula:Addition

   $\text{sum} = a + b$

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10. 10.

    What is 3 × 3?

    Formula:Multiplication (Times Tables)

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

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11. 11.

    What is double 18?

    Formula:Doubling

    $d = 2 \times n$

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12. 12.

    Fill in the missing number: 4 + ___ = 16.

    Formula:Missing Addend

    $b = \text{total} - a$

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13. 13.

    What is half of 38?

    Formula:Halving

    $h = n \div 2$

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14. 14.

    What is double 15?

    Formula:Doubling

    $d = 2 \times n$

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15. 15.

    What is half of 18?

    Formula:Halving

    $h = n \div 2$

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16. 16.

    Subtract 63 from 73.

    Formula:Subtraction

    $\text{difference} = a - b$

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17. 17.

    Add 12 + 2 + 11.

    Formula:Addition of Three Numbers

    $\text{sum} = a + b + c$

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18. 18.

    What is half of 22?

    Formula:Halving

    $h = n \div 2$

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19. 19.

    What is 4 × 5?

    Formula:Multiplication (Times Tables)

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

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20. 20.

    How many tens are there in the number 72?

    Formula:Place Value

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

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