Question

Round these number to the nearest $10.$

$18$

Answer 1

For nearest $10$ follow these steps$.$

• Consider the one's digit
• If the one's digit is $5$ or greater than $5$ then increase the ten's digit by $1$ and replace the one's digit by $0$
• If the one's digit is less than $5$ then leave the ten's digit unchanged and replace the one's digit by $0$

In $18$ one's digit is $8$$,$ Which is greater than $5$ now increase the ten's digit by $1$ and replace one's digit by $0$

Hence$,$ $18$ nearest to ten is $20$