递等式计算,能简便的就简便计算. 35.8-6.35+3.65 4200÷25 200+144÷(16×3) 280×36-360×
递等式计算,能简便的就简便计算.35.8-6.35+3.654200÷25200+144÷(16×3)280×36-360×185400÷(50×27)[3920-(56...
递等式计算,能简便的就简便计算. 35.8-6.35+3.65 4200÷25 200+144÷(16×3) 280×36-360×18 5400÷(50×27) [3920-(56+42×16)]÷28.
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(1)35.8-6.35+3.65, =29.45+3.65, =33.1; (2)4200÷25, =4200÷(5×5), =4200÷5÷5, =840÷5, =168; (3)200+144÷(16×3), =200+144÷48, =200+3, =203; (4)280×36-360×18, =280×36-36×180, =(280-180)×36, =100×36, =3600; (5)5400÷(50×27), =5400÷50÷27, =5400÷27÷50, =200÷50, =4; (6)[3920-(56+42×16)]÷28, =[3920-(56+672)]÷28, =[3920-728]÷28, =3192÷28, =114. |
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