Using Estimation

TIMS Bit

We recommend 2 minutes for this quiz. Allow students to change pens after the time is up and complete the remaining problems in a different color. After students take the test, have them update their Division Facts I Know charts.

It is likely that a student who answers 40 ÷ 8 correctly also knows the answer to 40 ÷ 5. To make sure, after the quiz, ask students to write a related division fact, if possible. The square numbers have only one division sentence (e.g., 25 ÷ 5 = 5). Then, students who answer a fact correctly and also write the correct related fact can circle both facts on the chart.

1. 10
2. 10
3. 5
4. 6
5. 5
6. 1
7. 4
8. 8
9. 5
10. 7
11. 5
12. 5
13. 7
14. 10
15. 10
16. 10
17. 10
18. 5
19. 9