Subtraction of Number

Subtraction of Number

Is the second operation you will discover (addition brother, like dynamic duo). It is all about taking small number away from big number (sometimes big from small). It is donated with the minus sign (-).
When you are working with subtraction try to keep these key words; subtrahend is the first number, minuend is the second number that result in difference (subtrahend minus minuend equals difference).

The big number can be take away from the small number, do you think am wrong, (4 - 5 = -1).

How larger numbers are subtract

When subtracting larger numbers place then on top of one another, by placing the units digit on top of the units digits and the tens digits on top of the tens digit (in subtraction don`t place more than two number, if you are given a number more than two numbers; first calculate the first and the second and later their result with the third).

Whenever the top digit in a column is smaller than the bottom here is what to do (borrowing process).

•      subtract 1 from the digit at the left of the top digit in the column you are working and write the answer at the top of the digit you are borrowing from.

•     The 1 you borrow is now put in front of the top digit in the column you are working (or you assume the 1 is 10 and add it to the top digit in that column).

 

NOTE: In some cases whereby the digit at the immediate left of the digit in the column you are, is a 0 (the top digit that is less than the bottom digit in the same column), you have to borrow from the next, and if the next digit is also a 0 you have to borrow from the next and so on.