65x34十34x34十34的简便计算:65x34十34x34十34
=34x(65+34+1)
=34x100
=3400
或
65x34十34x34十34
=(65+34+1)x34
=100x34
=3400
34ⅹ34+34x65+34
=34×(34+65+1)
=34×100
=3400
这道题可以用乘法的分配律来简算
原式=34×(34+65+1)
=34×100
=3400
34×34+34×65+34
=34×(34+65+1)
=34×100
=3400