On a scale from 0 to 100 with 10 being not sure, 40 being somewhat sure, 70 being pretty sure, and 100 being very sure.

How sure are you that you solved the second problem?

(The one about Jon’s seashells.)

Last summer, Jon’s family found 152 shells at the beach. This summer they were at the beach for 7 days. Each day they found 9 shells.

How many fewer shells did they find this year than last year?

Draw a line underneath your scratch work. You can upload a picture of the scratch work at the end.

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