Unit 2 Challenge

Explain how Lila might use the basic fact to help her solve the problem.

Mrs. Ball equally shared 30 markers among 3 groups. Mike’s group found 6 more markers. How many markers does Mike’s group have now? You may draw a picture to help.

Mrs. Ball equally shared 30 markers among 3 groups. Mike’s group found 6 more markers. How many markers does Mike’s group have now?

Which number models best fit the story?

You have 18 chairs that you want to arrange in an array. Show 3 different ways you could do this. Write number models for each array.

Can you make an 18-chair array with 5 rows? Explain.

Harrison is making a Frames-and-Arrows problem. His first two frames show 3 and then 6. Write a rule that Harrison might be using. Then fill in the frames.

Write a rule that gives different numbers for the other frames. Then fill in the frames.