10 questions · Form 1 Mathematics Bab 1: Rational Numbers
Which of the following numbers is an integer?
Prefer reading to quizzing? All 10 questions are listed below with the answer and explanation under each one.
1. Which of the following numbers is an integer?
Answer: A
Integers are whole numbers without fractional or decimal parts. -15 is a negative integer.
2. Calculate: -6 x (-5) ÷ (-2)
Answer: A
First, (-6) x (-5) = 30. Then, 30 ÷ (-2) = -15.
3. Evaluate: -13 + 56 - (-12)
Answer: A
Common denominator is 6: -26 + 56 + 36 = 66 = 1.
4. Evaluate: 4 - 3 x (-2) + 8 ÷ (-4)
Answer: A
Apply BODMAS: Multiplication first: 3 x (-2) = -6. Division: 8 ÷ (-4) = -2. Expression becomes: 4 - (-6) + (-2) = 4 + 6 - 2 = 8.
5. Which set of integers is arranged in ascending order?
Answer: A
Ascending order goes from the smallest (most negative) to the largest value: -8 < -5 < -2 < 0 < 3.
6. Calculate: -3.2 x 0.5 + 1.8
Answer: A
First, (-3.2) x 0.5 = -1.6. Then, -1.6 + 1.8 = 0.2.
7. Which law of arithmetic is illustrated by: 5 x (10 + 2) = (5 x 10) + (5 x 2)?
Answer: A
The Distributive Law states that a x (b + c) = (a x b) + (a x c).
8. If a = -3 and b = 4, calculate the value of 2a - 3b.
Answer: A
2(-3) - 3(4) = -6 - 12 = -18.
9. Evaluate: (-12) ÷ (-34)
Answer: A
(-12) x (-43) = 46 = 23.
10. The temperature at midnight was -4°C. By 8:00 AM, it rose by 9°C. What was the temperature at 8:00 AM?
Answer: A
-4 + 9 = 5°C.