1,use the numbers 1,2,3,5.7.9 to find the values of letter.
A B C
+ D E E
____________
B E D A
2, If 3#4=12-7=5
8#5=40-13=27
6#9=54-15=39
Then,calculate 9#8
Maths Problem(小學)
2007-10-28 11:02 pm
回答 (1)
2007-10-29 4:04 pm
✔ 最佳答案
1. 917
+ 322
--------
1239
A = 9, B = 1, C = 7, D = 3, E = 2
2.
a#b = ab - (a + b)
9#8 = 9 * 8 - (9 + 8) = 72 - 17 = 55
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