South Korea · Grade 2 · Practice Sheet 25

1. 1.

   Add 2 + 18 + 17.

   Formula:Addition of Three Numbers

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

   View formula →
2. 2.

   What is half of 18?

   Formula:Halving

   $h = n \div 2$

   View formula →
3. 3.

   What is 10 − 5?

   Formula:Subtraction

   $\text{difference} = a - b$

   View formula →
4. 4.

   Fill in the missing number: 2 + ___ = 4.

   Formula:Missing Addend

   $b = \text{total} - a$

   View formula →
5. 5.

   There are 2 bags with 7 apples in each bag. How many apples are there in total?

   Formula:Multiplication as Repeated Addition

   $\text{total} = \text{groups} \times \text{size}$

   View formula →
6. 6.

   Continue the pattern by counting in 3s: 9, 12, ___

   Formula:Skip Counting

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

   View formula →
7. 7.

   What is 6 − 4?

   Formula:Subtraction

   $\text{difference} = a - b$

   View formula →
8. 8.

   Add 5 + 6 + 16.

   Formula:Addition of Three Numbers

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

   View formula →
9. 9.

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

   Formula:Adding Money

   $\text{total} = a + b$

   View formula →
10. 10.

    Subtract 23 from 42.

    Formula:Subtraction

    $\text{difference} = a - b$

    View formula →
11. 11.

    You have ₩6 and ₩5. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

    View formula →
12. 12.

    Subtract 62 from 73.

    Formula:Subtraction

    $\text{difference} = a - b$

    View formula →
13. 13.

    Add 58 and 51.

    Formula:Addition

    $\text{sum} = a + b$

    View formula →
14. 14.

    What is 18 − 3?

    Formula:Subtraction

    $\text{difference} = a - b$

    View formula →
15. 15.

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

    Formula:Adding Money

    $\text{total} = a + b$

    View formula →
16. 16.

    Subtract 67 from 73.

    Formula:Subtraction

    $\text{difference} = a - b$

    View formula →
17. 17.

    What is 6 + 1?

    Formula:Addition

    $\text{sum} = a + b$

    View formula →
18. 18.

    Add 5 + 20 + 6.

    Formula:Addition of Three Numbers

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

    View formula →
19. 19.

    What is 9 × 4?

    Formula:Multiplication (Times Tables)

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

    View formula →
20. 20.

    Fill in the missing number: 3 + ___ = 8.

    Formula:Missing Addend

    $b = \text{total} - a$

    View formula →

© FormulaWon — formulawon.app · Answers & step-by-step working available on the solutions sheet.