1.
Negatif 25 ditulis ....
Correct Answer
C. - 25
Explanation
The given expression "Negatif 25" is the Turkish translation of "Negative 25" which means -25 in English. Therefore, the correct answer is -25.
2.
Bilangan berikut ini yang paling besar adalah ....
Correct Answer
D. 7
Explanation
The given options are 5, -4, -6, and 7. Among these options, the number 7 is the largest.
3.
Urutan bilangan yang tepat dari yang terkecil adalah ....
Correct Answer
C. -2 , -1 , 0 , 1 , 2
Explanation
The correct answer is -2, -1, 0, 1, 2 because it follows the ascending order from smallest to largest. The numbers are arranged in a sequential manner starting from -2 and increasing by 1 until it reaches 2. This arrangement ensures that each subsequent number is greater than the previous one, resulting in the correct order.
4.
-15 ..... 10 . Tanda yang tepat untuk perbandingan dua bilangan tersebut adalah ....
Correct Answer
A.
Explanation
The correct symbol to compare the two numbers is "
5.
Urutan bilangan yang tepat dari yang terbesar adalah ....
Correct Answer
C. 10, 7 , 6 , -8 , -9
Explanation
The given sequence of numbers is arranged in descending order, from the largest to the smallest number. The correct answer, 10, 7, 6, -8, -9, follows this pattern and is arranged correctly.
6.
Nilai dari 40 + ( - 7 ) = ....
Correct Answer
D. 33
Explanation
When we add a positive number to a negative number, we subtract the absolute value of the negative number from the positive number. In this case, we have 40 as a positive number and -7 as a negative number. The absolute value of -7 is 7. So, when we subtract 7 from 40, we get 33. Therefore, the correct answer is 33.
7.
Nilai dari 55 - ( - 15) = ....
Correct Answer
B. 70
Explanation
The given expression is 55 - (-15). When subtracting a negative number, it is equivalent to adding the positive number. Therefore, -(-15) becomes +15. So, the expression simplifies to 55 + 15, which equals 70.
8.
Nilai dari – 112 - 35 = ....
Correct Answer
C. - 147
Explanation
The correct answer is -147 because when subtracting a negative number from another negative number, the result is a negative number. In this case, subtracting 35 from -112 gives us -147.
9.
Nilai dari 100 + ( -20 ) - 25 = ....
Correct Answer
A. 55
Explanation
The given expression is 100 + (-20) - 25. When we simplify this expression, we start by adding 100 and -20, which gives us 80. Then, we subtract 25 from 80, resulting in 55. Therefore, the correct answer is 55.
10.
200 + .... = - 25
Correct Answer
D. - 225
Explanation
The correct answer is -225 because when you add -225 to 200, you get -25.
11.
- 75 - ...... = 25
Correct Answer
C. - 100
Explanation
In order to find the missing number in the equation, we can work backwards from the given answer. Starting with the answer of -100, if we add 100 to it, we get 0. If we then subtract 50 from 0, we get -50. Continuing in the same manner, if we subtract 50 from -50, we get -100. Therefore, the missing number in the equation is -100.
12.
1⁄2 ...... 1⁄4 Tanda yang tepat untuk membandingan bilangan tersebut adalah ....
Correct Answer
B. >
Explanation
The ">" symbol is the correct symbol to compare the given fractions. It indicates that the value of 1/2 is greater than the value of 1/4.
13.
Bilangan pecahan di bawah ini yang paling kecil adalah ....
Correct Answer
C. 1⁄10
Explanation
The given options are fractions, and we are asked to identify the smallest fraction among them. To compare fractions, we need to find a common denominator. In this case, the common denominator is 60. When we convert the fractions to have a denominator of 60, we get 20/60, 15/60, 6/60, and 12/60. Among these fractions, 6/60 or 1/10 is the smallest fraction.
14.
Urutan pecahan berikut dari yang terkecil yang benar adalah ....
Correct Answer
C. 1⁄25 , 1⁄10 , 1⁄8 , 1⁄2
Explanation
The correct answer is 1⁄25 , 1⁄10 , 1⁄8 , 1⁄2. This is the correct order of the given fractions from smallest to largest. The fraction 1⁄25 is the smallest because the denominator is the largest among all the fractions. Then, the fraction 1⁄10 comes next because its denominator is larger than 1⁄8. Finally, the fraction 1⁄2 is the largest because its denominator is the smallest among all the fractions.
15.
Bentuk paling sederhana dari 25⁄100 adalah ....
Correct Answer
C. 1⁄4
Explanation
The simplest form of a fraction is when the numerator and denominator have no common factors other than 1. In this case, the fraction 25/100 can be simplified by dividing both the numerator and denominator by 25. This results in the fraction 1/4, which is the simplest form of 25/100.
16.
Hasil dari 1⁄2 + 1⁄5 = .....
Correct Answer
B. 7⁄10
Explanation
To add fractions with different denominators, we need to find a common denominator. In this case, the common denominator is 10. We convert 1/2 to 5/10 and 1/5 to 2/10. Now we can add the fractions: 5/10 + 2/10 = 7/10. Therefore, the correct answer is 7/10.
17.
Hasil dari 4⁄5 - 1⁄3 = ....
Correct Answer
A. 7⁄15
Explanation
The correct answer is 7/15. To find this answer, we need to subtract 1/3 from 4/5. To subtract fractions, we need a common denominator. In this case, the common denominator is 15. So, we convert 4/5 to 12/15 and subtract 1/3 from it. 12/15 - 5/15 = 7/15. Therefore, the answer is 7/15.
18.
Hasil dari 25⁄30 + 1⁄3 - 2⁄5 = ....
Correct Answer
A. 23⁄15
Explanation
The given expression involves adding and subtracting fractions. To solve it, we need to find a common denominator for all the fractions involved. In this case, the common denominator is 30.
Converting each fraction to have a denominator of 30, we get:
25/30 + 1/3 - 2/5 = 25/30 + 10/30 - 12/30
Combining the numerators, we have:
25 + 10 - 12 = 23
Therefore, the final answer is 23/30.
19.
Bilangan cacah dari bilangan romawi LX adalah ....
Correct Answer
C. 60
Explanation
The Roman numeral LX represents the number 60. In Roman numerals, L represents 50 and X represents 10. When X is added to L, it means 10 is added to 50, resulting in 60. Therefore, the correct answer is 60.
20.
Bilangan cacah 78 jika dtiulis dengan bilangan romawi adalah ....
Correct Answer
D. LXXVIII
Explanation
The given correct answer, LXXVIII, represents the number 78 in Roman numerals. In Roman numerals, L represents 50, X represents 10, and V represents 5. When combined, LXXVIII represents 50 (L) + 10 (X) + 10 (X) + 5 (V) + 1 (I) + 1 (I) + 1 (I) = 78.
21.
Jaring-jaring kubus yang benar adalah ....
Correct Answer
C. Gambar c
22.
Bangun datar yang memiliki dua pasang sisi berhadapan sama panjang dan memiliki 2 pasang sudut adalah ....
Correct Answer
C. Jajargenjang
Explanation
A jajargenjang is a quadrilateral that has two pairs of opposite sides that are parallel and equal in length. It also has two pairs of opposite angles that are equal. This fits the description given in the question, where it states that the shape has two pairs of opposite sides that are the same length and has two pairs of angles. Therefore, the correct answer is jajargenjang.
23.
Bangun yang memiliki simetri lipat berjumlah 4 adalah ....
Correct Answer
B. Segiempat
Explanation
A segiempat (rectangle or square) is a shape that has four sides of equal length and four right angles. It is also a shape that has two lines of symmetry, one vertical and one horizontal, which means that if you fold the shape along these lines, both halves will match perfectly. Therefore, a segiempat is a shape that has four-fold rotational symmetry, making it the correct answer for the question.
24.
Jumlah simetri lipat bangun layang-layang adalah ....
Correct Answer
D. 1
Explanation
The given answer is 1. This is because a kite has one line of symmetry. A line of symmetry is a line that divides a shape into two equal halves, where each half is a mirror image of the other. In the case of a kite, there is only one line that can be drawn to divide it into two equal halves. Therefore, the number of lines of symmetry in a kite is 1.
25.
Bangun persegi panjang memiliki simetri putar sebanyak ....
Correct Answer
D. 2
Explanation
A rectangle has two lines of symmetry, one vertically and one horizontally. This means that if you were to fold the rectangle along either of these lines, the two halves would perfectly overlap each other. Therefore, a rectangle has two lines of symmetry, which is the same as saying it has two rotations of symmetry.