The answer process is as follows:

(1) Minutes are units of time. The relationship between minutes and seconds is sexagesimal, and 1 minute equals 60 seconds.

(2) How many seconds is 8 minutes and 7 seconds? Need multiplication. The mathematical expression is: 8 minutes x60+7=487 seconds.

Time unit conversion, 1 day =24 hours; 1 =60 points; 1 =60 seconds; 1 =3600 seconds;

Minutes, also called minutes, are units of time. Minute is English, which means "tiny" and also means min. Lettering = 15 minutes, word =5 minutes.

Seconds is the basic unit of time in the international system of units, with the symbol S, sometimes marked with English abbreviations as sec.

Extended data:

Conversion relationship of time units:

(1) One day = 1440 minutes, 1 hour =60 minutes? 1 min =60 seconds.

(2) A moment = 15 minutes, and a word =5 minutes (used in southern Fujian and Guangdong).

Angle relation of each pointer of the clock:

(1) An ordinary clock is equivalent to a circle, and its hour hand or minute hand is equivalent to walking 360 degrees.

(2) The angle of each large grid on the clock is 30.

(3) The angle of the hour hand every 1 min should be 0.5.

(4) The angle of minute hand per 1 min should be: 6.

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