**This file contains two activities using numbers through millions. The first Find Someone Who Knows activity has twelve numbers for students to write in standard form. The second activity has students rounding twelve numbers through millions to the nearest thousand, ten thousand, and hundred thousand. Directions and answer keys are included.
**Directions: Students walk around the room to find someone who knows the answer to each question. Student A tells student B an answer. Student B records the answer, and Student A initials that the
answer is what s/he told student B. Then Student B tells student A an answer, and so on. Each student may answer only one question on another student’s paper. At the end of the activity, each student should
have the initials of twelve different classmates. After students finish this activity, they go back to their seats for a whole group review of the answers. This is such a fun way to keep all students engaged.