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根式的運算

Authored by 陳 嘉卿

Mathematics

8th Grade

Used 24+ times

根式的運算
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10 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

下列敘述何者正確?

√5+√5+√5+√5可寫成5√5
√3+√2=√5
√15 ÷ 3 = √5
√2×√2×√2可寫成(√2)3

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

(-2√13)×(-4)=?

2√52
8√13
√13 / 2
-2√52

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

2√5×3√5=?

5√5
6√5
6√10
30

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

2
3
4
5

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

√2.4 = ?

12 / 5
1.2
2√15 / 5
4√15 / 5

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

3√6 + 8√3 - 6√3 - 2√6

3
0
2√3 + √6
9√3 + 5√6

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

-14√5 / 5
-2√3 / 5
-√40 / 5
-8√5 / 5

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