请问350除以14、900除以32除以6、25乘36的拖试简便计算

350÷14
=350÷7÷2
=50÷2
=25
900÷32÷6
=900÷6÷32
=150÷4÷8
=37.5÷8
=4.6875
25×36
=25×4×9
=100×9
=900