问题
填空题
找规律填空
(1)69+70+71=______×______=______;
(2)361+362+363+364+365+366+367+368+369=365×______=______;
(3)589+588+587+586+585+584+583=586×______=______.
答案
(1)69+70+71=70×3=210;
(2)361+362+363+364+365+366+367+368+369=365×9=3285;
(3)589+588+587+586+585+584+583=586×7=4102.
故答案为:(1)70,3,210;(2)9,3285;(3)7,4102.