16.3-3.57+2.7-4.43 44×25 99×26+26 540÷[(460-70)÷13]
390-360÷30×2 (925-100)÷25+108
16.3-7.6-2.4 8.8+4.3+5.2
9-(3.02+1.25) 2.13-1.59+0.87
102×47
546﹣253﹣147
125×56
243+336+57+64
①235-(456+304)÷4
②600÷[(160-76)÷7]
③95+560÷14×28
④640÷[8×(3.7+4.3)]
121+(682+79) 397﹣(45+197) 4×8×125×25 92×99+92