下面各题怎样简便就怎样算.(2429+1617)×18+1517213÷[1-(12+13)]4×0.8×2.5×12.5(2.8+3.85÷3.5)×4.6.-数学
题文
下面各题怎样简便就怎样算. (
4×0.8×2.5×12.5 (2.8+3.85÷3.5)×4.6. |
答案
(1)(
=
=
=
=
=1
(2)
=
|
题文
下面各题怎样简便就怎样算. (
4×0.8×2.5×12.5 (2.8+3.85÷3.5)×4.6. |
答案
(1)(
=
=
=
=
=1
(2)
=
|