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04 近似值_範圍

Authored by Mok Wai莫達威老師

Mathematics

KG - University

Used 3+ times

04 近似值_範圍
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12 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

234 cm 準確至 1cm,最大誤差是多少 ?

1cm
0.5cm
233.5cm
234.5cm

Answer explanation

準確至的一半

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

234 cm 準確至 1cm,下限是多少 ?

1cm
0.5cm
233.5cm
234.5cm

Answer explanation

量度值 - 最大誤差

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

234 cm 準確至 1cm,上限是多少 ?

1cm
0.5cm
233.5cm
234.5cm

Answer explanation

量度值 + 最大誤差

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

23 cm 準確至 1cm,以x cm 表示範圍,則

Answer explanation

23.5 會進位至 24

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

152.638 捨入至 二位小數

15
152.63
152.64
150

Answer explanation

3 之後的 8, 進位成 4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

152.638 捨入至 二位有效數字

15
152.63
152.64
150

Answer explanation

由左方數兩位至 5,2 不進位

小心要補 0。

因 15 和 152.638 相差很大

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

152.638 上捨入至 十位

15
16
150
160

Answer explanation

上捨,要進位

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