递等式计算(能简便的要简便)25.3×12-33.46÷0.35 ( 3 8 + 5 6 )÷ 1
递等式计算(能简便的要简便)25.3×12-33.46÷0.35(38+56)÷1242.5×13×0.489÷[(25+110)×34]9.34-(2.34+0.49)...
递等式计算(能简便的要简便)25.3×12-33.46÷0.35 ( 3 8 + 5 6 )÷ 1 24 2.5×13×0.4 8 9 ÷[( 2 5 + 1 10 )× 3 4 ] 9.34-(2.34+0.49) 4 5 + 4 5 ×19.
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(1)25.3×12-33.46÷0.35, =303.6-95.6, =208; (2)(
=(
=
=29; (3)2.5×13×0.4, =(2.5×0.4)×13, =1×13, =13; (4)
=
=
=
=
=
(5)9.34-(2.34+0.49), =(9.34-2.34)-0.49, =7-0.49, =6.51; (6)
=(1+19)×
=20×
=16. |
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