(495-45×7)÷45,
=(495-315)÷45,
=180÷45,
=4(天),
方法2:
495÷45-7,
=11-4,
=7(天),
答:還要生產7天;
(2)方法1:
56÷4×8,
=14×8,
=112(個),
8÷4×56,
=2×56,
答:她壹天工作8小時可以做112個.