Question

0.58×39+58×0.61怎么简便运算？

Answer 1

0.58×39+58×0.61
=0.58×39+0.58×61
=0.58×（39+61）
=0.58×100
=58

Answer 2

原式=58×0.01×39+58×0.61
=58×（0.01×39+0.61）
=58×（0.39+0.61）
=58×1
=58

Answer 3

0.58×39+58×0.61的简便运算0.58×39+58×0.61=0.58×39+0.58×61=0.58×（39+61）=58

Answer 4

根_据等式性质得，
=0.58X39+0.58X61
=0.58X(39+61)
=0.58X100
=58

Answer 5

0.58ⅹ39+58x0.61
=0.58ⅹ39+0.58ⅹ61
=0.58ⅹ(39+61)
=0.58x100
=58