a) Division by a number means subtracting that number repeatedly.
For example, to find 15 ÷ 3, subtract 3 from 15 repeatedly till you get a zero.
15 – 3 = 12, 12 – 3 = 9, 9 – 3 = 6, 6 – 3 = 3, 3 – 3 = 0
We have subtracted 3 from 15, 5 times to reach at zero.
So, 15 ÷ 3 = 5.
b) Multiplication and division are inverse operations. Multiplication is used to put equal groups together, and division separates one group into several equal groups.
For example:
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.
21,27,23
21 is the smallest number.