First, students will learn how to multiply and divide decimals by 10.
Multiplying and dividing decimals by 10 by Khan Academy
Next, students will learn how to multiply and divide decimals by 10, 100, and 1000.
Conclude by leading this investigation:
Banyan Tree Root Puzzle (Addition)
5.NBT.A.2: 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.