Colombia · Grado 1 · Practice Sheet 36

1. 1.

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

   Formula:Missing Addend

   $b = \text{total} - a$

   View formula →
2. 2.

   What is double 23?

   Formula:Doubling

   $d = 2 \times n$

   View formula →
3. 3.

   Add 63 and 14.

   Formula:Addition

   $\text{sum} = a + b$

   View formula →
4. 4.

   Fill in the missing number: 10 + ___ = 21.

   Formula:Missing Addend

   $b = \text{total} - a$

   View formula →
5. 5.

   What is double 14?

   Formula:Doubling

   $d = 2 \times n$

   View formula →
6. 6.

   Fill in the missing number: 14 + ___ = 20.

   Formula:Missing Addend

   $b = \text{total} - a$

   View formula →
7. 7.

   You have $7 and $7. How much money do you have altogether?

   Formula:Adding Money

   $\text{total} = a + b$

   View formula →
8. 8.

   Fill in the missing number: 4 + ___ = 8.

   Formula:Missing Addend

   $b = \text{total} - a$

   View formula →
9. 9.

   What is double 24?

   Formula:Doubling

   $d = 2 \times n$

   View formula →
10. 10.

    You have $5 and $3. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

    View formula →
11. 11.

    Add 78 and 24.

    Formula:Addition

    $\text{sum} = a + b$

    View formula →
12. 12.

    What is 10 − 2?

    Formula:Subtraction

    $\text{difference} = a - b$

    View formula →
13. 13.

    What is double 24?

    Formula:Doubling

    $d = 2 \times n$

    View formula →
14. 14.

    Add 75 and 21.

    Formula:Addition

    $\text{sum} = a + b$

    View formula →
15. 15.

    Fill in the missing number: 4 + ___ = 8.

    Formula:Missing Addend

    $b = \text{total} - a$

    View formula →
16. 16.

    Add 30 and 9.

    Formula:Addition

    $\text{sum} = a + b$

    View formula →
17. 17.

    Fill in the missing number: 5 + ___ = 18.

    Formula:Missing Addend

    $b = \text{total} - a$

    View formula →
18. 18.

    What is double 18?

    Formula:Doubling

    $d = 2 \times n$

    View formula →
19. 19.

    You have $1 and $8. How much money do you have altogether?

    Formula:Adding Money

    $\text{total} = a + b$

    View formula →
20. 20.

    What is double 23?

    Formula:Doubling

    $d = 2 \times n$

    View formula →

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