The simple calculation of 65*54 is as follows
The following is a detailed answer process
65*54=65*(50 4)=3250 260=3510
Where * represents the meaning of the multiple sign
Expand as follows
The calculation method of integer multiplication: align the ends of the two factors, and then multiply each bit of the first factor with the second factor from the ones bit in turn; If the second factor is two or more digits, multiply the tens after the ones, and then multiply the hundreds, and finally add the product obtained by the multiplication, and the digits should be aligned when the multiplication is done.