解题思路:①、⑤运用乘法分配律的逆运算简算;
②、③、⑥按运算顺序进行计算;
④把8.8拆成8+0.8,与0.125进行简算.
①24.1×1.5+7.59×15,
=2.41×15+7.59×15,
=(2.41+7.59)×15,
=10×15,
=150;
②(3.7+17×0.4)÷3.5,
=(3.7+6.8)÷3.5,
=10.5÷3.5,
=3;
③75.36÷12-4.32×0.5,
=6.28-2.16,
=4.12;
④8.8×0.125,
=(8+0.8)×0.125,
=8×0.125+0.8×0.125,
=1+0.1,
=1.1;
⑤7.6×5.3+3.7×7.6,
=(5.3+3.7)×7.6,
=9×7.6,
=68.4;
⑥6.6÷(0.68+0.42),
=6.6÷1.1,
=6.
点评:
本题考点: 小数四则混合运算;运算定律与简便运算.
考点点评: 此题考查学生的运算顺序,以及灵活运用运算定律进行简算的能力.