四年级数学题丫：36乘以111加888乘以8和99乘以99加199怎样简便计算？55，我和老妈苦战一晚上也没想出来啊

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36*111+888*8=111*(36+64)=111*100=11100 *(是乘号）基正消清友
99*99+199=99*99+2*99+1=(99+1)^=10000 (^代搏知表平方） 楼主请采纳啊！！

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解
36*111+888*8
=36*111+8*111*8
=36*111+64*111
=(36+64)*111
=100*111
=11100
解坦碧族
99*99+199
=99*99+(100+99)
=99*100+100
=100*100
=10000
看不懂我慧配可以让弊亲自教你

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36×111+888×8
=36×111+111×8×8
=111×(36+8×8)
=111×(36+64)
=111×100
=11100

99×99+199
=99×99+99+100
=99×(99+1)+100
=99×100+100
=9900+100
=10000

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36*111 + 888*8
= 36*111 + 8*8*111
= (36+64)*111
=11100

99*99+199
=99*99+99+100
=99*(99+1)+100
=10000

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36x111+888x8+99x99+199
=4x9x111+111x8x8+(100-1)(100-1)+199
=36x111+64x111+10000-100-100+1+199
=111x100+10000-200+200
=11100+10000
=21100

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