options: Recognize that in a multi-digit number, a digit in one place represents 10 times as much as it represents in the place to its right and 1/10 of what it represents in the place to its left.

Use place value understanding to round decimals to any place.

Explain patterns in the number of zeros of the product when multiplying a number by powers of 10, and explain patterns in the placement of the decimal point when a decimal is multiplied or divided by a power of 10. Use whole-number exponents to denote powers of 10.

Read, write, and compare decimals to thousandths.
problem_activity: Complete the following chart:
| **           Standard Form          ** | **           Word Form          ** |                          **           Expanded Form          **                          |
|----------------------------------------|------------------------------------|------------------------------------------------------------------------------------------|
|                                        |                                    | $$(4\times1)+\left(6\times\frac{1}{100}\right) + \left(3\times{\frac{1}{1,000}}\right)$$ |
|                                        |      thirty-five thousandths       |                                                                                          |
|                 42.905                 |                                    |                                                                                          |


correct_option_index: 3