
脱式计算(能简算的要简算)4.36×12.5×8;15.2÷0.25÷4;0.
脱式计算(能简算的要简算)4.36×12.5×8;15.2÷0.25÷4;0.46×1.9+0.54×1.9;3.6÷[(1.2-0.4)×0.5]....
脱式计算(能简算的要简算)4.36×12.5×8;15.2÷0.25÷4;0.46×1.9+0.54×1.9;3.6÷[(1.2-0.4)×0.5].
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(1)4.36×12.5×8
=4.36×(12.5×8)
=4.36×100
=436;
(2)15.2÷0.25÷4
=15.2÷(0.25×4)
=15.2÷1
=15.2;
(3)0.46×1.9+0.54×1.9
=(0.46+0.54)×1.9
=1×1.9
=1.9;
(4)3.6÷[(1.2-0.4)×0.5]
=3.6÷[0.8×0.5]
=3.6÷0.4
=9.
=4.36×(12.5×8)
=4.36×100
=436;
(2)15.2÷0.25÷4
=15.2÷(0.25×4)
=15.2÷1
=15.2;
(3)0.46×1.9+0.54×1.9
=(0.46+0.54)×1.9
=1×1.9
=1.9;
(4)3.6÷[(1.2-0.4)×0.5]
=3.6÷[0.8×0.5]
=3.6÷0.4
=9.
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