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4C 周界2

Authored by TSZ WONG

Mathematics

9th Grade

Used 10+ times

4C 周界2
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

以下哪道算式可以找出長方形的長?

26 ÷\div 2 - 5

26 \div 5 - 2

26 \div 2 ++ 5

26 - 5 ÷\div 2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

長方形的長和闊之和(即長+闊 / 周界 ÷\div 2) 是多少厘米?

20厘米

4厘米

10厘米

112厘米

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

長方形毛巾的周界是68 cm,長是24 cm,闊是多少 cm ?

10 cm

22 cm

44 cm

184 cm

4.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Media Image

如上圖所示,把3張大小相同的小長方形遊戲卡拼砌成一個大長方形,大長方形的周界是多少 cm?

(5×3+8) ×2 =46 \left(5\times3+8\right)\ \times2\ =46\ cm

(5+8)×3 =39 \left(5+8\right)\times3\ =39\ cm

(5+8)×2=26\left(5+8\right)\times2=26 cm

(5×6+8×2)=46 \left(5\times6+8\times2\right)=46\ cm

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

長方形草地長10m,闊是長的一半,小狗沿草地的外圍跑了4圈,牠共跑了多少m?

15 m

80 m

60 m

120 m

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

上圖平面圖形的周界是多少cm?

40 cm

35 cm

70 cm

65 cm

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Media Image

以下哪些算式能正確地算計上圖平面圖形的周界?

 4×5+8×2+124\times5+8\times2+12  

 (12+8)×2+4×2\left(12+8\right)\times2+4\times2  

 (12+8)×2\left(12+8\right)\times2  

 4+4+4+4+4+8+8+124+4+4+4+4+8+8+12  

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