5+4=
2+6=
8-5=
9-7=
10-9=
6-2=
9+0=
7-6=
7+3=
4-4=
8+2=
3+3=
6-3=
8-2=
1+3=
1+8=
4+3+2=
7-3+2=
5+3-2=
10-0-3=
2+5-4=
9-5-4=
8-1+2=
4+5+1=
11×=
0.22÷0.32 =
×6.3=
÷=
300%-=
17÷=
0.1:=(写比值)
120×13%=
①2x-=
②x+15%x=115
③4+x=24