①827-156-44
②45×99
③3.3+6.4+2.7+4.6
④5600÷25÷4
⑤81+9×91
⑥21×[(75+153)÷38]
22.38+7.02-19.38 73.2÷4÷25 85.7-15.6-4.4
125×(8+4)×25 645+650÷13-132 480÷[234-(152+34)]
48+8.5-3.8 6300÷25÷4 96×[(228-103)÷25]
102×26 98.5-(75.6+8.5) 66×25-25×26
①8.47+12.53-1.2 ②50-19.8-20.2 ③19.4+4.58+5.42
①7.45+6.28+3.72
②48×101
③76×99+76
④54.2-13.4-6.36
⑤(64-49)×25+40
⑥17×[325÷(19+6)]
①70-29.6-10.4
②283×5+17×5
③73+3.4+27+5.6
④10-2.75-3.25
⑤85×99
⑥25×64×125
①4.7-1.66-2.34
②4.8+7.44+2.56+5.2
③43000÷125÷8
④36×54+36+45×36
⑤(124-76)×23÷24
⑥270×[128÷(88-24)]
5.4+0.74+4.6=5.4++0.74
4.04+13.57+2.43=4.04+(◯)
48.72-0.2-0.8=48.72-(◯)