Taiwan · Grade 1 · Practice Sheet 13

1. 1.

   Fill in the missing number: 7 + ___ = 22.

   Formula:Missing Addend

   $b = \text{total} - a$

   View formula →
2. 2.

   What is 6 + 4?

   Formula:Addition

   $\text{sum} = a + b$

   View formula →
3. 3.

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

   Formula:Skip Counting

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

   View formula →
4. 4.

   Add 54 and 19.

   Formula:Addition

   $\text{sum} = a + b$

   View formula →
5. 5.

   What is 17 − 11?

   Formula:Subtraction

   $\text{difference} = a - b$

   View formula →
6. 6.

   Fill in the missing number: 15 + ___ = 20.

   Formula:Missing Addend

   $b = \text{total} - a$

   View formula →
7. 7.

   Add 89 and 30.

   Formula:Addition

   $\text{sum} = a + b$

   View formula →
8. 8.

   Fill in the missing number: 13 + ___ = 18.

   Formula:Missing Addend

   $b = \text{total} - a$

   View formula →
9. 9.

   What is 17 − 9?

   Formula:Subtraction

   $\text{difference} = a - b$

   View formula →
10. 10.

    Fill in the missing number: 8 + ___ = 23.

    Formula:Missing Addend

    $b = \text{total} - a$

    View formula →
11. 11.

    What is 8 + 4?

    Formula:Addition

    $\text{sum} = a + b$

    View formula →
12. 12.

    What is double 9?

    Formula:Doubling

    $d = 2 \times n$

    View formula →
13. 13.

    What is 18 − 15?

    Formula:Subtraction

    $\text{difference} = a - b$

    View formula →
14. 14.

    What is double 4?

    Formula:Doubling

    $d = 2 \times n$

    View formula →
15. 15.

    You have NT$ 1 and NT$ 3. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

    View formula →
16. 16.

    What is 6 + 9?

    Formula:Addition

    $\text{sum} = a + b$

    View formula →
17. 17.

    Continue the pattern by counting in 5s: 0, 5, ___

    Formula:Skip Counting

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

    View formula →
18. 18.

    What is 4 + 9?

    Formula:Addition

    $\text{sum} = a + b$

    View formula →
19. 19.

    Add 43 and 54.

    Formula:Addition

    $\text{sum} = a + b$

    View formula →
20. 20.

    What is double 24?

    Formula:Doubling

    $d = 2 \times n$

    View formula →

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