(84.67*33+89*39+90.12*29+88.43*41+89.22*48+85.86*39+84.62*32
(84.67*33+89*39+90.12*29+88.43*41+89.22*48+85.86*39+84.62*32
(1/2)元素周期表,第28#31#32#33#35#37#38#39#40#41#42#43#44#45#46#48#
6,12,19,27,33 ( )48 A.39 B.40 C.41 D.42
列竖式计算. 39×11 31×31 23×33 22×24 12×41 21×32.
42+41+40-39-38-37+36+35+35+34-33-32-31等于多少?
第32,33,34,35,36,37,38,39,40,41选什么
32 39 40 35 37 29 51 27 34 31 35 36 36 52 35 45 33 32 33 28
98,97,96,(),89,87,83,81,77,()69,63,59,57.53,(),41,39,33()27,
(1+11+21+31+41+51+1+71+81+91)+(9+19+29+39+49+59+69+79+89+99)
11*19+21*29+31*39+41*49+51*59+61*69+71*79+81*89+91*99 = 3308
27+29+31+33+35+37+39+41+43+45+47+49+51+53+55+57=()*()=672
20*21*22*23*24*25*26*27*28*29*30*31*32*33*34*35*36*37*38*39*