Multiplication without carrying

Multiplication without carrying Multiplication is one of the basic and important arithmetic operation used in different branches of mathematics. Multiplication is denoted by a cross sign . Multiplication of two numbers is like adding one them as many times as the other number. In multiplication the order of the numbers doesnt change the answer. Example 1: There are 32 students in a class. If there are 4 such classes, how many are the total number of students? Solution: Number of students in each class = 32. Number of classes = 4. Total number of students = 32 x 4. Here for the multiplication 4 is multiplied to the ones place 2 x 4 = 8. Now the 4 is multiplied to the tens place 3 x 4 = 12. Now placing the numbers next to each other. Hence 32 x 4 = 128 Total number of students = 128. Question: Multiple choice question (Pick the correct option.) What is the answer when 123 is multiplied with 3? a) 369 b) 300 c) 345 d) None of these. Correct answer: option a. Explanation: Here given for the multiplication 123 x 3 =? Multiply 3 to the ones place this gives 3 x 3 = 9. Multiply 3 to the tens place this gives 2 x 3 = 6. Now multiply 3 to the hundreds place this gives 1 x 3 = 3. Now place the numbers next to each other in order. This gives 369 Hence 123 x 3 = 369.