Let's estimate the product 189 × 4.
In order to estimate the product, first, we round the first factor to the nearest hundreds.
200 × 4 = 800
So, the estimated product is 800.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
The correct answer is
The smallest number is the one that comes first while counting.
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21 is the smallest number.