1.若要將40位男生和36位女生分組,每組的男生人數要一樣多,女生人數也一樣多,要分成最多組,每組每組有幾人?
Ans:
(40,36)=4*(10,9)
每組男生4人=>可以分為10組
每組女生4人=>可以分為9組
2.把一張長27公分寬36公分的粉彩紙剪成邊長最大的正方形可以剪成幾張
Ans:
(27,36)=9*(3,4)
最大正方形=9*9(cm^2).......ans
長邊3ㄍ,寬邊4ㄍ=3*4=12ㄍ.....ans
3.一個8分之1圓的扇形半經10公分面積是多少坪方公分
Ans:
1ㄍ圓=3.14*10^2=314(cm^2)
314/8=39.25(cm^2)......ans
4.道7-11便利商店買154元的商品就會送2個磁鐵如果想要得到8個磁鐵要買多少元的商品
Ans:
8/2=4(ㄍ)
4(ㄍ)*154=$616......ans
5.有一個直徑=16公分的園,面積是多少平方公方?
Ans:
半徑=8(cm)
3.14*8^2=200.96(cm^2).....ans
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