①25×61×4
②25×(4+8)
③56×99+56
④88×125
⑤25×68-28×25
⑥874+175+26+25
2000÷125 179+83+21 32×68+68×68
(103×12-236)÷25 99×102 384÷[16×(21-18)]
①54×98
②(+﹣)×24
③4.86×[1÷(2.1﹣2.09)]
④8﹣
①8(x﹣6.2)=41.6
②15.8﹣ +14.2﹣
③0.125×76+12.5%×24
④ x+ x=30
⑤
⑥