SALTA 2nd grade

(DOK 3)

2.MD.6

Use the number line to subtract.

The students in Mrs. Gland’s class recorded the number of seconds it took them to read 100 words. Adalee got faster each time she read.

25 26 27 28 29

30

31

Week 1 – 62 seconds Week 2 – 60 seconds Week 3 – 59 seconds Week 4 – she went down by 3 seconds Week 5 – 51 seconds

28 – 3 29 – 5 31 – 4 31 – 6

Create a number line to show Adalee’s progress. (DOK 2)

(DOK 1)

What number would go in each of the boxes? Explain how you know. (DOK 2)