Question

Write the value of $\boxed{}$

$80,000,000+\boxed{}+500,000+6,000+500+30=84,506,530$

Answer 1

LHS will be an expanded form of the RHS.

By comparing both sides we get,

RHS$=84,506,530$

LHS$=80,000,000+\boxed{\mathbf{4}\mathbf{,}\mathbf{000}\mathbf{,}\mathbf{000}}+500,000+6,000+500+30$

Hence, on comparing LHS and RHS box can be replaced by $4,000,000$.