认真计算下面各题,能简便的要简便算.( 7 9 + 5 6 - 1 4 )×72
认真计算下面各题,能简便的要简便算.(79+56-14)×721823÷85+1823×3854-(37+14)800÷4×0.9346÷34.6%-346....
认真计算下面各题,能简便的要简便算.( 7 9 + 5 6 - 1 4 )×72 18 23 ÷ 8 5 + 18 23 × 3 8 5 4 -( 3 7 + 1 4 )800÷4×0.9346÷34.6%-346.
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(1)(
=
=56+60-18, 98; (2)
=
=
(3)
=
=
(4)800÷4×0.9, =200×0.9, =180; (5)346÷34.6%-346, =346÷0.346-346, =1000-346, =654. |
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