康601數一直因數和質因數分解

康601數一直因數和質因數分解

1st - 5th Grade

17 Qs

quiz-placeholder

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康601數一直因數和質因數分解

康601數一直因數和質因數分解

Assessment

Quiz

Mathematics

1st - 5th Grade

Easy

Created by

陳老師 陳老師

Used 1+ times

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17 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

把90做質因數分解,下面哪一個答案是正確的?
90=9×10
90=2×5×9
90=2×3×15
90=2×3×3×5

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

下面哪一個是30的質因數分解?
1×30
3×10
5×6
2×3×5

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

下面哪一個是42的質因數分解?
2×3×7
3×14
2×21
1×42

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

下面哪一個數是15的質因數?
1
3
10
15

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

下面哪一個數是18的質因數?
1
2
6
9

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

下面哪一個數是9的質因數?
9
6
3
1

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

一個質數是某一個整數的因數時,我們稱這個質數為該整數的什麼數?
質數
因數
質因數
公因數

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