15.24+16.58-(5.24+3.58)怎样简算?

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15.24+16.58-(5.24+3.58)怎样简算?

15.24+16.58-(5.24+3.58)怎样简算?
15.24+16.58-(5.24+3.58)怎样简算?

15.24+16.58-(5.24+3.58)怎样简算?

15.24+16.58-(5.24+3.58)
=15.24-5.24+16.58-3.58
=10+13
=23

首先把括号解除得到15.24+16.58-5.24-3.58,而后第一个与第三个相减得到10,第二个与第四个想减得到13,然后相加得到10+13=23