关于九宫格的数学题_______________|a |b | c ||___|____|_____||d |e | f ||___|____|_____||g | h | l ||___|____|_____|如图:已知a=4,d=19,l=22且,每行、列、对角线之和相等.求b,ha b cd e fg h l

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关于九宫格的数学题_______________|a|b|c||___|____|_____||d|e|f||___|____|_____||g|h|l||___|____|_____|如图:已知a=

关于九宫格的数学题_______________|a |b | c ||___|____|_____||d |e | f ||___|____|_____||g | h | l ||___|____|_____|如图:已知a=4,d=19,l=22且,每行、列、对角线之和相等.求b,ha b cd e fg h l
关于九宫格的数学题
_______________
|a |b | c |
|___|____|_____|
|d |e | f |
|___|____|_____|
|g | h | l |
|___|____|_____|
如图:已知a=4,d=19,l=22
且,每行、列、对角线之和相等.求b,h
a b c
d e f
g h l

关于九宫格的数学题_______________|a |b | c ||___|____|_____||d |e | f ||___|____|_____||g | h | l ||___|____|_____|如图:已知a=4,d=19,l=22且,每行、列、对角线之和相等.求b,ha b cd e fg h l
根据九宫格的特征,可得3e=a+e+l,所以2e=a+l=4+22=26,所以e=13,所以a+e+l=3*13=39,所以每行、列、对角线之和都为39,由此可推算出g=39-4-19=16,所以h=39-16-22=1,b=39-1-13=25.
(4) (25) (10)
(19) (13) (7)
(16) (1) (22)
综上所述:b=25,h=1.