Question

4.nbt.a.2
write the number in expanded form and standard form.
three hundred forty - two thousand five hundred seven

Explanation:

Step1: Identify place values

Three hundred forty-two thousand = $342 \times 1000$, five hundred seven = $507$

Step2: Convert to standard form

$342 \times 1000 + 507 = 342000 + 507 = 342507$

Step3: Expand into place values

$300000 + 40000 + 2000 + 500 + 7$

Answer:

Expanded form: $300000 + 40000 + 2000 + 500 + 7$
Standard form: $342507$