用递等式计算2.98+6.5×(3.2-3.12) [(6.1-4.6)+0.8]×0.4
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用递等式计算2.98+6.5×(3.2-3.12)[(6.1-4.6)+0.8]×0.4用递等式计算2.98+6.5×(3.2-3.12)[(6.1-4.6)+0.8]×0.4用递等式计算2.98+6
用递等式计算2.98+6.5×(3.2-3.12) [(6.1-4.6)+0.8]×0.4
用递等式计算2.98+6.5×(3.2-3.12) [(6.1-4.6)+0.8]×0.4
用递等式计算2.98+6.5×(3.2-3.12) [(6.1-4.6)+0.8]×0.4
2.98+6.5×(3.2-3.12)
=2.98+6.5×0.08
=2.98+0.52
=3.5
[(6.1-4.6)+0.8]×0.4
=[1.5+0.8]×0.4
=2.3×0.4
=0.92
2.98+6.5×(3.2-3.12)
=2.98+6.5×0.08
=2.98+0.52
=3.5
[(6.1-4.6)+0.8]×0.4
=(1.5+0.8)×0.4
=2.3×0.4
=0.92