China · Grade 3 · Practice Sheet 18

1. 1.

   How many tens are there in the number 50?

   Formula:Place Value

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

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2. 2.

   What is 10 × 2?

   Formula:Multiplication (Times Tables)

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

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3. 3.

   Add 67 and 42.

   Formula:Addition

   $\text{sum} = a + b$

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4. 4.

   What is 4 × 3?

   Formula:Multiplication (Times Tables)

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

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5. 5.

   Subtract 32 from 55.

   Formula:Subtraction

   $\text{difference} = a - b$

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6. 6.

   How many tens are there in the number 90?

   Formula:Place Value

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

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7. 7.

   40 sweets are shared equally among 5 children. How many does each child get?

   Formula:Division (Equal Sharing)

   $\text{each} = \text{total} \div \text{groups}$

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8. 8.

   Add 61 and 13.

   Formula:Addition

   $\text{sum} = a + b$

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9. 9.

   Subtract 45 from 78.

   Formula:Subtraction

   $\text{difference} = a - b$

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10. 10.

    You have ¥5 and ¥4. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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11. 11.

    What is 10 × 2?

    Formula:Multiplication (Times Tables)

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

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12. 12.

    Continue the pattern by counting in 3s: 0, 3, ___

    Formula:Skip Counting

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

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13. 13.

    Add 6 + 7 + 10.

    Formula:Addition of Three Numbers

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

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14. 14.

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

    Formula:Adding Money

    $\text{total} = a + b$

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15. 15.

    What is half of 42?

    Formula:Halving

    $h = n \div 2$

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16. 16.

    Add 19 + 8 + 14.

    Formula:Addition of Three Numbers

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

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17. 17.

    You have ¥6 and ¥3. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

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18. 18.

    How many tens are there in the number 97?

    Formula:Place Value

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

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19. 19.

    Fill in the missing number: 9 + ___ = 20.

    Formula:Missing Addend

    $b = \text{total} - a$

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20. 20.

    Add 8 + 3 + 2.

    Formula:Addition of Three Numbers

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

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