Wednesday, June 23, 2010

Multiplication

Multiplications is fundamental operation on whole numbers. The fundamental operations on whole numbers are addition, subtraction, multiplications, and division. The time is the process of repeated addition of a number. Times or multiply denoted by the symbol × or *. Elementary school students use the symbol × for multiplications (multiply) or times. Leibniz uses the cap symbol for multiplications or times. This symbol is used to indicate intersection in set.
Multiplications

Multiplications indicates by placing the quantities to be multiplied side by side (just a position). The important of multiplications process is to place the digits value of the factors in the proper columns. That is, units number must be placed in the units column, tens in tens column, and hundreds in hundreds column. Notice that it is not essential to write the zero in the case of 15 tens (150) since the 1 and 5 are written in the proper columns.

Example 1:

Multiply 750 × 99

Solution:

750 × 99 means 99 times 750

or 100 times 750 – one time 750

or 75000 – 750

or 74250

Therefore 750 × 99 = 74250

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