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P4正方形面積

Authored by hc lam

Mathematics

4th Grade

Used 59+ times

P4正方形面積
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8 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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圖中圖形的面積是?

48m2

54m2

30m2

42m2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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一個圖形由四個大小相同的正方形和一個長方形組成,正方形的周界是84 cm。以下哪一道算式可以計出上圖的面積?

(84 ÷ 4) × (84 ÷ 4)

84 ÷ 4 × 10

(84 ÷ 4) × (84 ÷ 4) × 6

(84 ÷ 4) × 2 + (84 ÷ 4) × 3

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

一個正方形的周界是44厘米,它的面積是多少?

11平方厘米

44平方厘米

88平方厘米

121平方厘米

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

一個正方形的邊長是8 m,如果邊長減少3 m,面積減少了多少m2

64m2

25m2

39m2

55m2

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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在圖中畫上兩條虛線,得出長方形P和正方形Q。Q的邊長是18 cm,P的長與Q的邊長相等,P的闊是Q的邊長的一半,圖形的面積是多少?

126 cm2

162 cm2

972 cm2

1944 cm2

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

有三張大小相同的卡紙,每張卡紙長16 cm,闊7 cm,現把它們重疊放置如上圖所示,重疊後的圖形面積是多少?以下哪一道算式可以計出上圖的面積?

(16 × 7 × 3)

(16 × 7 × 3) – (7 × 7)

(16 × 7 × 3) – (7 × 7 × 2)

(16 × 7 × 3) – (16 – 7 ) × 7

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

家明有兩條長度相等的繩子,他用其中一條圍出一個長10cm,闊8cm的長方形,另一條則圍出一個正方形。這個正方形的面積是多少?

36cm2

80cm2

81cm2

120cm2

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