÷3=
25%×4=
×0=
24×=
1÷-÷1=
1-38%=
=
0÷=
10.2+22%=
1÷=
783+199=
494-298=
-=
+=
0.5+=
×=
÷=
1÷25%=
99×9+99=
2-15%=
×=
× =
3÷=
÷ 3=
0.48×=
×÷×=
①x÷0.5=
②x-20%x=
③=26
x+3x=7 (x- )×12.5%=
①75%x-2.4=3.6
②17%x+28%x=9
③5x-20%x=19.2
④7.2-65%x=5.9