Helipads for Antopolis

TIMS Bit

This diagnostic quiz will allow you to identify students who need extra practice with the subtraction facts that can be solved by using the strategy using tens. Since 14 − 9 will be one more than 14 − 10, students may reason that the answer will be 5, or 4 + 1.

We recommend 1 minute for this test. Allow students to change pens after the time is up and complete the remaining problems in a different color.

1. 5
2. 9
3. 7
4. 10
5. 6
6. 10
7. 10
8. 5
10. 6
11. 5
12. 8
13. 7
14. 9
15. 4
16. 2
17. 6
18. 10