①303-154-46
②2000÷125÷8
③125×88
④541-(141-373)
⑤8×25+8×75
⑥5×97+15
①37.5-4.58= ②6.9×0.54= ③8.946+7.35=
①936-36÷9×2 ②73.8-27.6+362-72.4 ③101×46
④38×[(373+227)÷24] ⑤25×32×125 ⑥6400-125÷8
7878÷78=
5656÷56=
567567÷567=
①26×15﹣200
②8×4×12.5×0.25
③×+
④12÷[()×]