发布人:繁体字网(www.fantiz5.com) 发布时间:2015-10-24 07:30:00
试题原文 |
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(1)1.28+0.86+38.72, =(1.28+38.72)+0.86, =40+0.86, =40.86; (2)0.45÷0.6÷0.5, =0.45÷(0.6×0.5), =0.45÷0.3, =1.5; (3)32×0.25×1.25, =8×4×0.25×1.25, =(4×0.25)×(1.25×8), =1×10, =10; (4)0.78÷0.13×0.2, =6×0.2, =1.2; (5)13.6×9+40.6÷2, =122.4+20.3, =142.7; (6)1.08×0.8÷0.27, =0.864÷0.27, =3.2. |
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