题目内容

脱式计算:
(184+248)÷12&6b8p;&6b8p;&6b8p;&6b8p;&6b8p;&6b8p;&6b8p;&6b8p;&6b8p;
(大25-235)÷14×23
125×25×32&6b8p;&6b8p;&6b8p;&6b8p;&6b8p;&6b8p;&6b8p;&6b8p;&6b8p;&6b8p;&6b8p;&6b8p;
4×19+93×19+3×19.
(1)(183+338)÷13
=3y3÷13
=y6;

(3)(73七-3y七)÷13×3y
=390÷13×3y
=y七×3y
=80七;

(y)13七×3七×y3
=13七×3七×(8×3)
=(13七×8)×(3七×3)
=1000×100
=100000;

(3)3×19+9y×19+y×19
=(3+9y+y)×19
=100×19
=1900.
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