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ให้นักเรียนเลือกคำตอบที ถูกต้องที่สุดเพียงคำตอบ ดียว
Questions and Answers
- 1.
25+(-5) มีค่าเท่ากับข้อใด
- A.
30
- B.
-20
- C.
-30
- D.
20
Correct Answer
D. 20Explanation
The expression 25+(-5) can be simplified as 25 minus 5, which equals 20.Rate this question:
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- 2.
(-35) + (-28) มีค่าเท่ากับข้อใด
- A.
-7
- B.
7
- C.
-63
- D.
63
Correct Answer
C. -63Explanation
The given expression (-35) + (-28) can be simplified by adding the two negative numbers together. When adding negative numbers, we add their absolute values and keep the negative sign. Therefore, |-35| + |-28| = 35 + 28 = 63. Since both numbers are negative, the sum will also be negative. Hence, the correct answer is -63.Rate this question:
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- 3.
(-100) +25 + (-20) มีค่าเท่ากับข้อใด
- A.
-95
- B.
-145
- C.
-120
- D.
95
Correct Answer
A. -95Explanation
The given expression (-100) + 25 + (-20) can be simplified by adding the numbers together. When we add -100 and -20, we get -120. Adding 25 to -120 gives us -95. Therefore, the correct answer is -95.Rate this question:
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- 4.
-20-25-32 มีค่าเท่ากับข้อใด
- A.
77
- B.
-37
- C.
-45
- D.
-77
Correct Answer
D. -77Explanation
The given expression -20-25-32 is equal to -77. This can be calculated by subtracting 20 from -25, which gives -45, and then subtracting 32 from -45, resulting in -77.Rate this question:
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- 5.
-30+14-50 มีค่าเท่ากับข้อใด
- A.
-66
- B.
-94
- C.
66
- D.
94
Correct Answer
A. -66Explanation
The given expression is -30 + 14 - 50. By following the order of operations (PEMDAS/BODMAS), we first perform the addition and subtraction from left to right. -30 + 14 equals -16, and then -16 - 50 equals -66. Therefore, the expression is equal to -66.Rate this question:
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- 6.
(45-50)+(-5)-10 มีค่าเท่ากับข้อใด
- A.
-30
- B.
30
- C.
20
- D.
-20
Correct Answer
D. -20Explanation
The given expression is (45-50)+(-5)-10. First, we perform the subtraction inside the parentheses, which gives us -5. Then, we add -5 and -10, which equals -15. Therefore, the correct answer is -15.Rate this question:
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- 7.
90-100 มีค่าเท่ากับข้อใด
- A.
-10
- B.
10
- C.
25
- D.
ถูกทุกข้อ
Correct Answer
A. -10Explanation
The correct answer is -10. This is because the given statement "90-100 มีค่าเท่ากับข้อใด" translates to "90-100 is equal to which option" in English. The only option that is equal to the range 90-100 is -10.Rate this question:
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- 8.
100-200+30-40 มีค่าเท่ากับข้อใด
- A.
-110
- B.
100
- C.
-200
- D.
-370
Correct Answer
A. -110Explanation
The given expression can be simplified by following the order of operations (PEMDAS). First, we subtract 200 from 100, resulting in -100. Then, we add 30 to -100, giving us -70. Finally, we subtract 40 from -70, resulting in -110. Therefore, the expression 100-200+30-40 is equal to -110.Rate this question:
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- 9.
500+500 มีค่าเท่ากับข้อใด
- A.
100
- B.
0
- C.
1000
- D.
10000
Correct Answer
C. 1000Explanation
The sum of 500 and 500 is equal to 1000.Rate this question:
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- 10.
-200-30-50+27 มีค่าเท่ากับข้อใด
- A.
-253
- B.
-307
- C.
307
- D.
253
Correct Answer
A. -253Explanation
The given expression involves addition and subtraction of numbers. Starting from left to right, we have -200-30 which equals -230. Then, we subtract 50 from -230, which gives us -280. Finally, we add 27 to -280, resulting in -253. Therefore, the correct answer is -253.Rate this question:
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Current Version
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Mar 22, 2023Quiz Edited by
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Jul 16, 2010Quiz Created by
Pansipak
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