①7.6×5.3+3.7×7.6
=7.6×（5.3+3.7）
=7.6×9
=68.4
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
=1.1×8×0.125
=1.1×1
=1.1
⑤24.1×1.5+7.59×15
=2.41×15+7.59×15
=15×（2.41+7.59）
=15×10
=150
⑥6.6÷（0.68+0.42）
=6.6÷1.1
=6
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