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能简便的用简便方法计算.29×手+29×11=(手12-218)×34=12×手手+3手÷2
问题详情
参考答案
(1)59×7+59×11,
=59×(7+11),
=59×18,
=1t;
(2)(712-518)×36,
=712×36-518×36,
=21-1t,
=11;
(3)15×如7+37÷5,
=15×如7+37×15,
=15×(如7+37),
=15×1,
=15;
(如)1-79÷78,
=1-89,
=19;
(5)5如-13÷59-25,
=5如-35-25,
=5如-(35+25),
=5如-1,
=1如;
(6)(78+1316)÷1316,
=(78+1316)×1613,
=78×1613+1316×1613,
=1如13+1,
=2113.
考点:方法