问题
计算题
选择合适的方法计算。 | ||||
|
答案
(1)22.5×(7.8+8.2)
=22.5×16
=390
=13.8-3
=10.8
(3)1.25×0.25×3.2
=1.25×8×(0.25×0.4)
=1
=71.8×(0.9+0.1)
=718
选择合适的方法计算。 | ||||
|
(1)22.5×(7.8+8.2)
=22.5×16
=390
=13.8-3
=10.8
(3)1.25×0.25×3.2
=1.25×8×(0.25×0.4)
=1
=71.8×(0.9+0.1)
=718