(98×76)÷(39×49)用简便该怎么算呢?小学四年级
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ï¼98x76)÷(38x49)
=98x76÷38÷49
=(98÷49)x(76÷38)
=2x2
=4;
æè åå¼æ¯ï¼
ï¼98x78)÷(39x49)
=98x78÷39÷49
=(98÷49)x(78÷39)
=2x2
=4
ä¾åèã
ï¼98x76)÷(38x49)
=98x76÷38÷49
=(98÷49)x(76÷38)
=2x2
=4;
æè åå¼æ¯ï¼
ï¼98x78)÷(39x49)
=98x78÷39÷49
=(98÷49)x(78÷39)
=2x2
=4
ä¾åèã
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