Question

Solve mentally$.$

$80,000-2458$

Answer 1

Given numerical expression is $80,000-2458$

For subtraction use the following steps$.$

• Change the first digit of minuend with its predecessor
• Replace every zero of minuend from left with $9$ and the last with $10$
• Subtract the number

$$\begin{gathered} 80000 \\ \underbrace{|}\underbrace{|}\underbrace{|}\underbrace{|} \\ 799910 \end{gathered}$$

Now subtract $432$

$$\begin{gathered} 799910 \\ -2458 \\ \overline{77542} \end{gathered}$$

Hence$,$ the value of $80,000-2458$ is $77542$