800÷25×4 45.7-(15.7+9.8) 237×99+237
125×32×25 8.19-5.9+11.81-4.1 693-[515÷(32-27)]
①101×27 ②125×32×25 ③12.85-4.2+3.15-5.8
④9.25-3.75+1.25 ⑤2000÷125÷8 ⑥240×66+340×24
①37.3-3.7-7.3
②7800÷[(315-289)×5]
③85000÷(125×85)
④(28+28+28+28)×25
⑤99×59+59
⑥35.58+63.7+4.42-3.3
56+56×99 22.6+5.5+7.4
①25×280 ②51.27﹣8.66﹣1.27 ③78×115﹣78×14﹣78
④67×102 ⑤168×[（573﹣248）÷13] ⑥15.68+9.82﹣1.68+12.18
139×40×25
437×28 + 63×28
99×45
（90 + 25）×4
185×19 + 185
125×808