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What is 12 multiplied by 11?
A. 121
B. 132
C. 144
D. 124
Correct Answer Is Option = 132
Notes / Explanation
When the number twelve is multiplied by eleven, the result is one hundred and thirty-two, and this calculation provides a useful opportunity to reflect on the operation of multiplication, which is one of the most basic and important skills in arithmetic. Multiplication is a way of adding a number to itself a certain number of times, so that multiplying twelve by eleven is the same as adding twelve to itself eleven times, or equally adding eleven to itself twelve times, and in either case the total comes to one hundred and thirty-two. Multiplication is a much quicker way of carrying out this repeated addition than actually adding the numbers one by one, which is why a good knowledge of multiplication is so valuable. There are several ways to work out this particular calculation. One helpful method is to break the problem into simpler parts. Since eleven is equal to ten plus one, multiplying twelve by eleven can be done by multiplying twelve by ten, which gives one hundred and twenty, and then multiplying twelve by one, which gives twelve, and finally adding these two results together, which gives one hundred and thirty-two. This method of breaking a multiplication into easier parts is a useful technique that can be applied to many calculations. Another approach is simply to recall the fact from the multiplication tables, since the products of numbers up to a certain point are often learnt by heart, and a person who knows their tables well will be able to recall or quickly work out that twelve times eleven is one hundred and thirty-two. A good command of the multiplication tables and of methods for working out multiplications is extremely useful, not only for solving problems in mathematics but also for dealing with countless practical situations in everyday life, such as calculating quantities, prices and measurements. For this reason, practice in multiplication is an important part of building a strong foundation in arithmetic. Questions testing the ability to carry out such calculations quickly and accurately are common in examinations, where speed and accuracy in basic arithmetic can be very helpful. For PPSC and other competitive examinations, the key points to remember are that twelve multiplied by eleven equals one hundred and thirty-two, that multiplication is a quick way of carrying out repeated addition, that a multiplication such as this can be worked out by breaking it into easier parts, and that a good knowledge of the multiplication tables makes such calculations quick and easy.
