Предмет: Математика, автор: kobzeva2013

Чем различаются выражения?
43×34
343×34
343×234
2343×234

Чем будут отличаться вычисления первого и второго произведений? Второго и третьего? Третьего и четвёртого?

Ответы

Автор ответа: rasimagaliullov
0
43*34=1462
343*34=(300+43)*34=300*34+43*34=10200+1462=11662
343*234=343*(200+34)=343*200+343*34=68600+11662=80262
2343*234=234*(2000+343)=234*2000+234*343=468000+80262=548262
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