1=5 2=7 3=9 4=13 5=?
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1=52=73=94=135=?1=52=73=94=135=?1=52=73=94=135=?17
1=5 2=7 3=9 4=13 5=?
1=5 2=7 3=9 4=13 5=?
1=5 2=7 3=9 4=13 5=?
17
1=5 2=7 3=9 4=13 5=?
1=5,2=7,3=9,4=11 5=?5=?
13分之3*( )=9分之4*( )=2又7分之5*( )0.35*( )=1
1) 12/13-8/13= 2) 8/9-2/9= 3) 14/15-10=1) 12/13-8/13= 2) 8/9-2/9= 3) 14/15-10= 4) 11/13-7/13=5) 8/10-1/10= 6) 13/14-7/14= 7) 5/9+1/9= 8) 5/13-4/13=9) 4/13-1/13= 10) 4/5-2/5= 11) 9/12+3/12= 12) 7/13-3/13=13) 1/12+11/12= 14) 4/15+8/15= 15) 8/12-2/12= 1
5/9*1.8= 5/12除5/6= 2.25+3/2*1/2= 8/5*5= 1/4除0.025= 3/2+13/5= 7/4*5/4除7/4=
提问时间:观察以下问题:13-9=3+1=4 13-8=3+2=5 13-7=3+3=6 13-6=3+4=7 13-5=3+5=8 13-4=3+6=9 计算十几提问时间:观察以下问题:13-9=3+1=4 13-8=3+2=513-7=3+3=6 13-6=3+4=713-5=3+5=8 13-4=3+6=9计算十几减几的退位减法时,
4-3/22= 3/8÷5/24= 35×2/5=4-3/22= 3/8÷5/24= 35×2/5= 9×3/5= 25×3/5= 2/3+1/8= 7/8×3/14= 5/6-1/2= 39×9/13= 4/5-1/8= 7/10÷7/12= 10/9-1/9= 2/3×1/4= 36÷4/9=
1=5 2=9 3=13 4=17请问5等于多少?
1=5 2=7 3=9 4=14 5=?
1+3+5+7+9+11+13+.+99=?2+4+6+8+.+50=?
13/11÷26= 5/8×5= 3/2÷2/3= 8/15×9/10= 5/8×4/15=9/10÷12/5= 21×3/35= 45÷9/5×2/81= 9×5/6÷5/12= 30÷2/3÷4/5= 5/9×11/3×1/2= 3/7÷7/13×14/9= 4/7×28÷1/10=
1+5=7,2+6=13,3+7=21,4+8=23,请问5+1=?
1=1,2=2,3=3,4=5,5=8,6=10,7=13,8=16,9=23,10=32 那么11=?
3+5+7+8+1+5+5-9×13=
有一种运算符号“&”是下列算式成立 2&3=7 5&3=13 4&5=13 9&7=25 求995&9=?
1/2+1/5=( ) 12×2/3=( ) 9/10×5/18=( ) 3/4-3/5=( ) 3/7×21=( ) 12/5×5/4=( ) 2/13×39
1+2=3; 4+5+6=7+8; 9+10+11+12=13+14+15
对角线数独,8 = = = 3 = = = 5= = 3 5 = = = = == = 5 = = = = = == = 7 = 5 = = 6 == 1 = = 6 4 9 5 == 5 = = = = = = =5 = = = 1 = = = == 7 = 9 = = 5 = =2 4 = 8 = 5 = = =