解题思路:(1)把36看作9×4,运用乘法结合律简算;
(2)把102看作100+2,运用乘法结合律简算;
(3)把16看作2×8,运用乘法结合律简算;
(4)运用乘法结合律简算.
(1)36×25,
=9×4×25,
=9×(4×25),
=9×100,
=900;
(2)102×24,
=(100+2)×24,
=100×24+2×24,
=2400+48,
=2448;
(3)35×16×125,
=35×2×8×125,
=(35×2)×(8×125),
=70×1000,
=70000;
(4)137×15-15×37,
=15×(137-37),
=15×100,
=1500.
点评:
本题考点: 运算定律与简便运算;整数四则混合运算.
考点点评: 完成本题,要注意分析式中数据,运用所学的运算定律,灵活简便.