Question

4.83×(3.9—2.4)+1.5×7.17的简便计算怎样计

Answer 1

4.83x（3.9-2.4）+1.5x7.17=4.83x1.5+1.5x7.17=1.5x（4.83+7.17）====乘法分配律

Answer 2

4.83×（3.9-2.4）+1.5×7.17
＝4.83×1.5+1.5×7.17
＝1.5×（4.83+7.17）
＝1.5×12
＝18