解题思路:(1)运用减法的性质简算;
(2)根据数字特点,把8.8看作8+0.8,运用乘法分配律简算;
(3)运用乘法分配律简算.
(1)70.8-1.25-1.75,
=70.8-(1.25+1.75),
=70.8-3,
=67.8;
(2)1.25×8.8,
=1.25×(8+0.8),
=1.25×8+1.25×0.8,
=10+1,
=11;
(3)0.36×101-0.36,
=0.36×(101-1),
=0.36×100,
=36.
点评:
本题考点: 运算定律与简便运算.
考点点评: 注意审题,选择合适的运算定律或性质简算.