數學問題(小六升中一)

1.﹝7x6(13-2)-4﹞﹝7(12-3)-4(9-5)=???
=﹝7x6x11-4﹞﹝7x9-4x4﹞
=﹝462-4﹞﹝63-16﹞
=﹝458﹞﹝47﹞
= 21526

幫我轉反做中文
2.There are 40 pupils in P.6A and there are 10 girls more than boys. One day , 5 boys were absent. How many boys were present on that day?

6A 班有40名學生，女生比男生多10名。一天，有5名男生缺席，問那天共有多少個男生出席呢？

2008-08-23 17:55:45 補充：
6A 班有40名學生，女生比男生多10名。一天，有5名男生缺席，問那天共有多少個男生出席呢？

設 x是男生數目，女生數目是 X+10
X + (X +10) =40
2X+10 = 40
2X = 40-10
2X = 30
X=15
6 A班有15名男生
該日有5名男生缺席
那天共有 10名男生出席

OK喇......答得幾好

1. [7x6(13-2)-4][7(12-3)-4(9-5)]
=[42x11-4]x[7x9-4x4]
=[462-4]x[63-16]
=458x47
=21526

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2. 6a班有40位學生.女仔多過男仔10個.有1日.有5個男仔冇番學.咁果日有幾多個男仔有番到.