①102×28
②8.3-5.47
③56×【(306+99)÷27】
④132+66×98
⑤4.32+0.68-3.32
⑥12×11×75
⑦956-297
⑧3200÷25÷16
⑨0.98+0.97-0.96+0.95-0.94
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
①222×999+333×334
②0.9+9.9+99.9+999.9+9999.9+0.5
③25×96×125
④56.43+12.96+13.57-4.33-7.96-5.67
①25×16×5
②101×99+101
③14.87+0.66-3.87+1.34
放69本书,4号书架放45本书