13 11 25 14 3 15 4 )
13 11 25 14 3 15 4 )
1+2+3-4+5+6+7-8+9+10+11-12+13+14+15-16.+25+26+27-28
(11*26+12*27+13*28+14*29+15*30+16*31)/(11*25+12*26+13*27+14*
2/5+1/4+3/8 11/9-2/7-5/7 11/25+(1/12+14/25) 15/18-(15/18-11/
4 10 11 12 13 14 15
最小公倍数 3和4() 10和5() 9和13() 14和42() 81和27() 8和15() 25和75() 11和
算36点 (1)12,13,14,16 (2)3,16,17,25 (3)5,5,9,9 (4)9,10,11,13 (
不难,计算(1)2+(-3)+(-4)+5+6+(-7)+(-8)+9+10+(-11+)+(-12)+13+14+15
8 9 10 11 12 13 14 15 0 1 2 3 4 5 6 7 24 25 26 27 28 29 30 3
我会计算.(能简算要简算) 8/25*516*2/7 ● 1/7+5/14*2/13 ● 3/4*14/15-3/4÷1
(1)1,1,2,4,3,9,4,16,( ),25,6,( )(2)15,16,13,19,11,22,( ),25,
3,4,5,6,7,8,11,12,13,14,15,16,17,18,21,22,23,24,25,26,27,28,