Here is what you need to know:
N1a: "Read and write whole numbers to 1 000 000."
N1b: "Describe personal referents for large benchmark numbers (100, 1000, 10 000, 100 000, 250 000, 500 000, 750 000, 1 000 000)."
N1c: "Flexibly express numbers in a variety of ways, including expanded notation."
N1d: "Describe the value of number digits and the pattern of place value."
N1a: "Read and write whole numbers to 1 000 000."
N1b: "Describe personal referents for large benchmark numbers (100, 1000, 10 000, 100 000, 250 000, 500 000, 750 000, 1 000 000)."
N1c: "Flexibly express numbers in a variety of ways, including expanded notation."
N1d: "Describe the value of number digits and the pattern of place value."