2+2=7,3+3=9,4+4=0,1+1=?

2+2=7,3+3=9,4+4=0,1+1=? 2 + 1 = 9 4 + 2 = 36 7 + 0 = 49 9 + 3 = 1+1=0,2+2=0,3+3=0,4+4=2,5+5=0,6+6=2,7+7=0,8+8=4,9+9=2,10+10=? 2+3 =0;3+4=5,4+1=7 ,2+4=? 9 9 9 9=4 1 1 1 1=0 7 3 2 9=1 2 5 6 8=3 7 7 2 1=0 2 4 8 8=4 7 3 7 6=1 2 6 8 9=?9 9 9 9=4 1 1 1 1=0 7 3 2 9=1 2 5 6 8=3 7 7 2 1=0 2 4 8 8=4 7 3 7 6=1 2 6 8 9=? 填上合适的运算符号和括号2 2 2 2 2 = 0 2 2 2 2 2 = 14/4+4-4=1 4/4+4/4=2 4 4 4 4=3 4 4 4 4=44 4 4 4=5 4 4 4 4=6 4 4 4 4=7 4 4 4 4=84 4 4 4=9 4 4 4 4=10 1+2+3+4+5+6+7+8+9+1+0++2+1+= 1*2=1/3(1*2*3-0*1*2),2*3=1/3(2*3*4-1*2*3),3*4=1/3(3*4*5-2*3*4)由此得1*2+2*3+3*4=1/3*3*4*5=20请计算1*2+2*3+3*4+.+n(n+1)=______,1*2*3+2*3*4+3*4*5+.+7*8*9=______ 1=5,2=7,3=9,4=11 5=?5=? 4/7÷4/5= 1÷7/9= 2-4/9= 4/9×4/7= 3/10÷9/10= 1-2+3-4+5-6+7-8+9-0=?1-2+3-4+5-6+7-8+9-0+8=? 如果1=4 2=7 3=5 4=0 1+4+2+7+4+2 +1+1+1+4+7=? 1+2+3+4+5+6+7+8+9-0-1-2-3-4-5-6-7-8-9+0+2+0=? #include void main() { int aa[4][4]={{1,2,3,4},{5,6,7,8},{3,9,10,2},{4,2,9,6}}; int i,s=0;#includevoid main(){int aa[4][4]={{1,2,3,4},{5,6,7,8},{3,9,10,2},{4,2,9,6}};int i,s=0;for(i=0;i (1) (-8)+10+2+(-1) =2+2+(-1) =4+(-1) =3 (2) 5+(-6)+3+9+(-4)+(-7) =(-1)+3+9+(-4)+(-7) =2+9+(-4)+(-7) =11+(-4)+(-7) =7+(-7) =0 (3) (-0.8)+1.2+(-0.7)+(-2.1)+0.8+3.5 =0.4+(-0.7)+(-2.1)+0.8+3.5 =(-0.3)+(-2.1)+0.8+3.5 =(-0.09)+0.8+3.5 =4.12 (4) 2/1+(-3/2)+ 1=5 2=7 3=9 4=13 5=? 1=5 2=7 3=9 4=14 5=? 1+2+3+4+5+6+7+8+9=?