4 ×0.99怎样简算
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4×0.99怎样简算4×0.99怎样简算4×0.99怎样简算=56.4*(1-0.01)=56.4*1-56.4*0.01=56.4-0.564=55.83656.4×0.99=56.4×(1-0.0
4 ×0.99怎样简算
4 ×0.99怎样简算
4 ×0.99怎样简算
=56.4*(1-0.01)=56.4*1-56.4*0.01=56.4-0.564=55.836
56.4 ×0.99
=56.4×(1-0.01)
=56.4×1-56.4×0.01
=56.4-0.564
=55.836
56.4×0.99
=56.4×(1-0.01)
=56.836
O(∩_∩)O谢谢
56.4x(1-0.01)=56.4-0.564=55.836
本题用到的是乘法分配律a×(b+c)=a×b+a×c
56.4 ×0.99
=56.4×(1-0.01)
=56.4×1-56.4×0.01
=56.4-0.564
=55.836
56.4 ×(1-0.01)懂了吗