七上正負數的四則運算5

七上正負數的四則運算5

7th Grade

30 Qs

quiz-placeholder

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七上正負數的四則運算5

七上正負數的四則運算5

Assessment

Quiz

Mathematics

7th Grade

Practice Problem

Hard

Created by

黃俊賓 關山國中

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30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

計算 (-593) + 97 + 593 的值。

97

0

687

-97

Answer explanation

計算時,(-593) + 593 = 0,然後 0 + 97 = 97。因此,最終結果是 97,正確答案是 97。

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

計算 (-410) + 52 + 410 的值。

52

0

872

-52

Answer explanation

計算時,(-410) + 410 = 0,然後再加上52,得到0 + 52 = 52。因此,正確答案是52。

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

計算 476 + [749 + (-476)] 的值。

749

476

849

649

Answer explanation

計算 476 + [749 + (-476)] 時,-476 與 476 相抵消,剩下 749。因此,最終結果是 749,正確答案是 749。

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

計算 487 + [489 + (-487)] 的值。

489

487

490

488

Answer explanation

計算 487 + [489 + (-487)] 時,內部括號的計算為 489 - 487 = 2,因此整個表達式變為 487 + 2 = 489。正確答案是 489。

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

計算 408 + [721 + (-408)] 的值。

721

408

1121

0

Answer explanation

計算 408 + [721 + (-408)] 時,內部括號先計算,721 + (-408) = 313。然後 408 + 313 = 721。因此,正確答案是 721。

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

計算 537 + [859 + (-537)] 的值。

859

537

859 + (-537)

0

Answer explanation

計算 537 + [859 + (-537)] 時,括號內的計算 859 + (-537) 等於 322。然後 537 + 322 等於 859,因此正確答案是 859。

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

數線上有 A (20)、B (-28)、C (-38.5) 三點,求 線段AB、線段BC 的正確值。

AB = 48, BC = 10.5

AB = 48, BC = 66.5

AB = 48, BC = 58.5

AB = 48, BC = 38.5

Answer explanation

線段AB的長度為 |20 - (-28)| = 48。線段BC的長度為 |-28 - (-38.5)| = 10.5。因此,正確答案是 AB = 48, BC = 10.5。

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