the number 53,489 is represented in several ways under five bullet points in the picture. Mirror the language/format of those five bullet points for the number 28,974.

9-4 Thinking abo With words: Fifty-three thousand four hundred 9-4 Thi eighty-nine wit With numerals and words: 5 ten thousands, 3 thousands, 4 hundreds, 8 tens, 9 ones; or Awareness 53 thousands, 4 hundreds, 8 tens, 9 ones sense. Stu With numerals: 50,000 + 3,000 + 400 + 80 + 9 used in da With expanded notation: (5 x 10,000) + (3 X room infor 1,000) + (4 x 100) + (8 x 10) + 9 money. Stu With exponents: 5 x 10' + 3 x 103 + 4 X 10 not exact, + 8 x 10' + 9 x 100 that may i Exponential notation for large, and small num- How bers is written with powers of 10 or exponents: about 20,000 becomes 2 x 10,000 or 2 x 10'. Interme- How diate- and middle-grade students learn scientific does or exponential notation for larger numbers, such way? as distances in space. Activity 9.13 encourages It take students to explore numbers using the calculator. and 2