2.OA.4
Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.
1. | Choose the array with the same no. of counters: 3x2 | |
2. | Choose the array with the same no. of counters: 2x4 | |
3. | Choose the array with the same no. of counters: 3x4 | |
4. | Choose the array with the same no. of counters: 5x3 | |
5. | Count in times: 3x2 | |
6. | Count in times: 5x2 | |
7. | Count in times: 4x2 | |
8. | Count in times: 6x2 | |
9. | Count in times: 2x3 | |
10. | Count in times: 4x2 | |
11. | Count in times: 5x2 | |
12. | Count in times: 6x2 | |
13. | Count in times: 4x3 | |
14. | Count in times: 4x3 | |
15. | Count in times: 3x3 | |
16. | Count in times: 3x5 |