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二年級上學期復習

Authored by CHU YK

Mathematics

8th Grade

Used 17+ times

二年級上學期復習
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

(a+b)(c+d) 展開之後是什麼?

ab+cd+bc+ad
ac+ad+bc+bd
ab+cd
ac+ad−bc−bd

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

選出「差的平方公式」

a²−b²
(a+b)²
(a−b)²
(a−b)(a+b)

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

6x²+4x+3 有幾項?

4
3
2
1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

6x³+9x²−7x−15 的 x² 項係數是多少?

6
9
−7
−15

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

面積為 2 的正方形,邊長是多少?

1
2
√2
4

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

√2.25 是多少?

15
1.5
25
0.15

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

3√2 是什麼式子的簡記?

√2+√2+√2
√3+√3
√2×√2×√2
√3×√3

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