32.8＋19＝51.85.2÷1.3＝41.6×0.4＝ 0.644.9×0.7＝3.431÷5＝0.26÷12＝0.50.87－0.49＝0.38456+45=501 546-457=8945×10=450879+54=933 896-546=350
