1.
Convert 18 to roman numeral.
Correct Answer
B. XVIII
Explanation
The correct answer is XVIII. In Roman numerals, the symbol X represents 10 and the symbol V represents 5. When a smaller numeral appears in front of a larger numeral, it is subtracted. Therefore, XVIII translates to 10 + 5 + 1 + 1 + 1 = 18.
2.
Round this number to the nearest whole number:28.6
Correct Answer
D. 29
Explanation
To round a number to the nearest whole number, we look at the decimal part of the number. If the decimal part is 0.5 or greater, we round up to the next whole number. In this case, the decimal part of 28.6 is 0.6, which is greater than 0.5. Therefore, we round up to the next whole number, which is 29.
3.
What is the place value of the underlined number?3218
Correct Answer
C. Hundreds
Explanation
The underlined number in the given question is 2, which is in the hundreds place.
4.
Convert MMDCLVIII to number.
Correct Answer
E. 2658
Explanation
The given Roman numeral "MMDCLVIII" can be converted to its equivalent number by adding the values of each individual Roman numeral symbol. "M" represents 1000, "D" represents 500, "C" represents 100, "L" represents 50, "V" represents 5, and "I" represents 1. Therefore, MMDCLVIII is equal to 1000 + 1000 + 500 + 100 + 50 + 5 + 1 + 1 + 1 = 2658.
5.
Convert 3754 to roman numeral.
Correct Answer
B. MMMDCCLIV
Explanation
The correct answer is MMMDCCLIV because in Roman numerals, M represents 1000, D represents 500, C represents 100, L represents 50, and IV represents 4. Therefore, MMMDCCLIV represents 3000 + 500 + 100 + 100 + 50 + 4, which equals 3754.
6.
Jane has 18 balloons. 10 are green and the rest are blue. How many balloons are blue?
Correct Answer
C. 8
Explanation
The question states that Jane has 18 balloons and 10 of them are green. This means that the remaining balloons must be blue. To find the number of blue balloons, we subtract the number of green balloons from the total number of balloons: 18 - 10 = 8. Therefore, there are 8 blue balloons.
7.
Round this number to two decimal places:
586.185
Correct Answer
A. 586.19
Explanation
The number 586.185 is rounded to two decimal places by looking at the third decimal place, which is 5. Since 5 is greater than or equal to 5, the second decimal place, which is 8, is rounded up to 9. Therefore, the rounded number is 586.19.
8.
Dayan got 4 new shirts on her birthday. If she already had 8, how many does she have now?
Correct Answer
B. 12
Explanation
Dayan had 8 shirts before her birthday, and she received 4 new shirts on her birthday. To find out how many shirts she has now, we need to add the number of shirts she had before (8) to the number of new shirts she received (4). Therefore, Dayan has a total of 12 shirts now.
9.
What is the place value of the underlined number?
8368
Correct Answer
D. Tens
Explanation
The underlined number in 8368 is 6, which is in the tens place.
10.
I have 18 balls, half of them are green. How many are green?
Correct Answer
C. 9
Explanation
Since half of the 18 balls are green, we can divide 18 by 2 to find the number of green balls. 18 divided by 2 equals 9, so there are 9 green balls.
11.
Convert MMDLXXXVIII to number.
Correct Answer
A. 2588
Explanation
The given Roman numeral "MMDLXXXVIII" can be converted to the number 2588. In Roman numerals, "M" represents 1000, "D" represents 500, "L" represents 50, and "X" represents 10. By adding up these values, we get 1000 + 1000 + 500 + 50 + 10 + 10 + 10 + 5 + 1 + 1 + 1 = 2588.
12.
I'm thinking of an odd number. It's greater than 6 but it's less then 9. What could my odd number be?
Correct Answer
C. 7
Explanation
The given question states that the odd number is greater than 6 but less than 9. Among the options provided, only 7 fits this criteria as it is an odd number and falls within the given range. Therefore, 7 is the correct answer.
13.
Round this number to the nearest whole number:81799.5
Correct Answer
D. 81800
Explanation
The given number, 81799.5, is halfway between 81799 and 81800. When rounding to the nearest whole number, we round up if the decimal part is 0.5 or greater. In this case, the decimal part is 0.5, so we round up to the nearest whole number, which is 81800.
14.
I saw 2 dogs and 3 cats outside. How many legs did I saw?
Correct Answer
C. 20
Explanation
Since each dog has 4 legs and each cat has 4 legs, the total number of legs seen would be 2 dogs x 4 legs/dog + 3 cats x 4 legs/cat = 8 + 12 = 20.
15.
Jehd counted 3 flowers in the flower pot. Each flower has 3 petals. How many petals are there in all?
Correct Answer
E. 9
Explanation
Since there are 3 flowers in the flower pot and each flower has 3 petals, we can calculate the total number of petals by multiplying the number of flowers by the number of petals per flower. Therefore, 3 flowers x 3 petals per flower = 9 petals in total.