来自牟化建的问题
(2002•米易县)用递等式计算.19.9-(7.81×0.42+0.58×7.81)1.3×2.6×25÷(0.65×200)5÷56-56÷5+13(934-10.5×45)×(416+7.5)1688÷(24.3×2-625)1.21×42-(4.46+750)
(2002•米易县)用递等式计算.
19.9-(7.81×0.42+0.58×7.81)1.3×2.6×25÷(0.65×200)5÷56-56÷5+13(934-10.5×45)×(416+7.5)1688÷(24.3×2-625)1.21×42-(4.46+750)
1回答
2020-04-07 23:33