South Korea · Grade 2 · Practice Sheet 21

1. 1.

   There are 5 bags with 2 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 →
2. 2.

   Add 59 and 27.

   Formula:Addition

   $\text{sum} = a + b$

   View formula →
3. 3.

   Fill in the missing number: 5 + ___ = 7.

   Formula:Missing Addend

   $b = \text{total} - a$

   View formula →
4. 4.

   Subtract 22 from 31.

   Formula:Subtraction

   $\text{difference} = a - b$

   View formula →
5. 5.

   What is 4 × 8?

   Formula:Multiplication (Times Tables)

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

   View formula →
6. 6.

   Continue the pattern by counting in 3s: 6, 9, ___

   Formula:Skip Counting

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

   View formula →
7. 7.

   Add 52 and 27.

   Formula:Addition

   $\text{sum} = a + b$

   View formula →
8. 8.

   Continue the pattern by counting in 2s: 0, 2, ___

   Formula:Skip Counting

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

   View formula →
9. 9.

   Add 22 and 38.

   Formula:Addition

   $\text{sum} = a + b$

   View formula →
10. 10.

    There are 5 bags with 4 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 →
11. 11.

    Add 42 and 19.

    Formula:Addition

    $\text{sum} = a + b$

    View formula →
12. 12.

    What is 15 − 12?

    Formula:Subtraction

    $\text{difference} = a - b$

    View formula →
13. 13.

    What is 3 + 9?

    Formula:Addition

    $\text{sum} = a + b$

    View formula →
14. 14.

    You have ₩9 and ₩8. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

    View formula →
15. 15.

    Continue the pattern by counting in 10s: 20, 30, ___

    Formula:Skip Counting

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

    View formula →
16. 16.

    What is 15 − 8?

    Formula:Subtraction

    $\text{difference} = a - b$

    View formula →
17. 17.

    What is double 5?

    Formula:Doubling

    $d = 2 \times n$

    View formula →
18. 18.

    How many tens are there in the number 85?

    Formula:Place Value

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

    View formula →
19. 19.

    You have ₩4 and ₩6. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

    View formula →
20. 20.

    What is half of 40?

    Formula:Halving

    $h = n \div 2$

    View formula →

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