①
②
③
④
⑤
⑥
36×()= ÷3= 25%+(-12.5%)÷=
①24× ÷
②( - )× +
③ × + ÷6
④( + )×24
⑤ ×33+ ×46+
⑥ ÷ ÷
6.12+0.7﹣1.12= 10﹣﹣= 23=
1÷1%= 1.5π≈ 0.5××2×=