0,1,2,27,56,50,57,72,83,91,105,250,121,891这些数,质数有(),合数有( )
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0,1,2,27,56,50,57,72,83,91,105,250,121,891这些数,质数有(),合数有()0,1,2,27,56,50,57,72,83,91,105,250,121,891这
0,1,2,27,56,50,57,72,83,91,105,250,121,891这些数,质数有(),合数有( )
0,1,2,27,56,50,57,72,83,91,105,250,121,891这些数,质数有(),合数有( )
0,1,2,27,56,50,57,72,83,91,105,250,121,891这些数,质数有(),合数有( )
质数:1 2 57 83 91
合数:27 56 50 72 105 250 121 891
质数有(2,83),合数有(0,27,56,50,57,72,91,105,250,121,891)
0,1,2,27,56,50,57,72,83,91,105,250,121,891这些数,质数有(),合数有( )
56*27+56*72+56
-17*(-3又1/17)简便计算-17*(-3又1/17)99又62/72*(-36)(-125)*(-25)*(-5)*(-2)*(-4)*(-8)57*55/56+27*27/28现在就要,
0 1/2 -6 12 0.05 -30 42 1/56 -72 数列中第50个数是什么
0 1/2 -6 12 0.05 -30 42 1/56 -72 数列中第50个数是什么
简单的百分数计算:::::::::41/53 =12/53 =15/72 =20/72 =10/72 =27/72 =44/56 =6/56 =37/52 =14/52 =1/52 =42/58 =11/58 =5/58 =10/57 =4/57 =43/57 =13/52 =21/52 =18/52 =40/52 =8/52 =4/52 =8/58 =6/58 =44/58 =4/50 =28/50 =18/50 =
57×55/56+1/56
急,找规律填数 1,2,3,5,10,25,25,50,125,{} {} {}?1,9,7,8,72,56,{ }{ }{ 1,2,3,5,10,25,25,50,125,{ } { } { 1,9,7,8,72,56,{ }{ }{ 1,8,6,4,3,7,5,9,72,54,36,27,63,45,{ }{ }{ }{ }{ }{ }{ 2,5,6,9,7,5,6,3,1,5,2,8,4,52,5,44,5,5,46,3,5,6,65,56,6,{ }{ }{ }{
19又13/14*(-10) 57*55/56+27*27/28 -13*2/3-0.34*2/7+1/3*(-13)-5/7*0.34 用简便计算
57x55/56+27x27/28
3/2+7/6+13/12-21/20+31/30-43/42+57/56+73/72
1,2,13,27,41,56,63,67,68,70,72,79,80 合数:质数:奇数:偶数:
1 +1+2分之1 +1+2+3分之1+……+1+2+3…50分之16分之7+12分之13+20分之21+30分之31+42分之43+56分之57+72分之73+90分之91用分数的巧算的方法~约分啊什么的~
简便计算:57*56又1/57
27、56、50、72、97、91、83、105、891、121哪些是质数,哪些是合数?
1到100英语单词1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
1+2+3+4+56+57+58+59等于
简算57^2-57*54+27^2