a) Importance of Vedic Mathematics,
b) How to multiply any number with 11 by using Vedic mathematics method? Write
all steps clearly through examples.
c) Addition of numbers using place value concept,
Answers
Answer:
a) to multiply any two-digit number by 11, simply add the digits of the number together and then put this sum between the original two digits. For example, to quickly find the answer to 11 x 53, start by adding the two digits of the number 53 together to get 5+3=8. Next, put this new number between the original two digits to get 583. That’s the answer!
If the sum of the two digits is greater than 9, carry the 1 over to the tens digit. So for a problem like 11 x 94, start by adding the two digits of the number 94 together to get 9+4=13. Since this number is greater than 10, you need to stick the 3 between the two original numbers and carry the 1 from 13 to the resulting tens column. Doing so gives you an answer of 1,043.
b) While there are many different ways to teach children how to add and subtract, it is important for your child to understand the essence of each idea: Addition is “putting together” and subtraction is “taking apart.” It is also vital for your young learner to recognize the connection between the two operations — that they are the opposite of each other.
Throughout your child’s learning of fact families (a set of related addition and subtraction or multiplication and division number equations), she will begin to see relationships between numbers, and become more confident with the idea of adding and subtracting.
During second grade, your child is introduced to the concept of using “place value” (the value of where the digit is in the number, based on the location of the digit) in order to add and subtract numbers. At this age, she will likely become stronger at taking numbers apart and putting them back together. This strategy helps her think abstractly about what she is doing while building her number-sense at the same time. The idea of regrouping and memorizing steps is not the focus. Students often begin to feel more confident about what they are learning and their own understanding.
Another way to think about this strategy is the idea of “break apart.” We are breaking the numbers apart — adding or subtracting — then putting them back together. This can be done several ways and with any model or tool necessary. The idea is to move your child toward doing most of the math work in her head, so that as she gets older, her mental math skills grow stronger.
Here are some examples of the break apart method:
23 + 75 =
Think about the value of each digit in each number.
23 is made up of 20 and 3