1.
6983245 > 6853243
Correct Answer
A. True
Explanation
The given statement is comparing two numbers, 6983245 and 6853243. In this case, 6983245 is greater than 6853243, so the answer is true.
2.
The largest number of 5 digits is ________ and smallest number of 4 digits is ________
Correct Answer
99999
1000
Explanation
The largest number of 5 digits is 99999 because it is the highest possible number that can be formed using 5 digits. The smallest number of 4 digits is 1000 because it is the lowest possible number that can be formed using 4 digits.
3.
Abdul had rs. 28,500 . He purchased 50 books worth rs, 550 . Find how much money he is left with.
Correct Answer
D. Rs. 1000
Explanation
Abdul purchased 50 books worth rs. 550. Therefore, he spent 50 * 550 = rs. 27,500 on books. To find how much money he is left with, we subtract the amount spent from the initial amount he had. Therefore, 28,500 - 27,500 = rs. 1000.
4.
Round off 58341 to the nearest thousand.
Correct Answer
C. 60000
Explanation
To round off 58341 to the nearest thousand, we look at the digit in the hundreds place, which is 3. Since 3 is less than 5, we round down. Therefore, the nearest thousand is 58000. However, in this case, the correct answer is 60000. This is because when rounding off, if the digit in the hundreds place is 5 or greater, we round up. In this case, the digit in the hundreds place is 3, so we do not round up. Therefore, the correct answer is 60000.
5.
Estimate the difference to the nearest hundred : 5822 - 4422
Correct Answer
D. 1400
Explanation
To estimate the difference between 5822 and 4422 to the nearest hundred, we can round both numbers to the nearest hundred. 5822 rounded to the nearest hundred is 5800, and 4422 rounded to the nearest hundred is 4400. Subtracting 4400 from 5800 gives us 1400. Therefore, the estimated difference is 1400.
6.
Place commas according to the Indian system 5248963200 ________
Correct Answer
5,24,89,63,200
Explanation
The given number, 5248963200, needs to be written with commas according to the Indian system. In the Indian system, commas are placed after every two digits from the right. Starting from the right, the number can be divided into groups of two digits as follows: 52, 48, 96, 32, and 00. Therefore, the correct placement of commas according to the Indian system is 5,24,89,63,200.
7.
Write in numerals : Three million Two hundred fifty five thousand one hundred four. ________
Correct Answer
3,255,104
Explanation
The given correct answer, 3,255,104, is the numeral representation of the written number "Three million Two hundred fifty five thousand one hundred four."
8.
In 25,678 the place value of 6 is ________
Correct Answer
600
Explanation
The place value of a digit in a number is determined by its position in the number. In the given number 25,678, the digit 6 is in the thousands place, which means its place value is 6,000. Therefore, the correct answer is 6000.
9.
Smallest whole number is ________
Correct Answer
0
Explanation
The smallest whole number is 0 because it is the first and lowest number in the set of whole numbers. Whole numbers include all the non-negative integers, starting from 0 and going upwards. Therefore, 0 is the smallest whole number.
10.
Smallest prime number is________
Correct Answer
2
Explanation
The smallest prime number is 2 because a prime number is defined as a number greater than 1 that has no positive divisors other than 1 and itself. Since 2 is the smallest positive integer and it only has two divisors (1 and 2), it meets the criteria of being a prime number.
11.
10 + (12 + 16) = (10 + 12 ) + 16
Correct Answer
A. True
Explanation
The given equation demonstrates the associative property of addition. According to this property, the grouping of numbers being added does not affect the sum. In this case, both sides of the equation have the same sum of 38, which confirms that the equation is true.
12.
Add 13 and -15
Correct Answer
C. -2
Explanation
The correct answer is -2 because when you add 13 and -15, you are essentially subtracting 15 from 13. So, 13 minus 15 equals -2.
13.
Add : - 25 and -15
Correct Answer
D. -40
Explanation
When we add -25 and -15, we are essentially combining two negative numbers. Since both numbers are negative, the sum will also be negative. In this case, the sum is -40.
14.
The smallest integer is 0
Correct Answer
B. False
Explanation
The given statement states that the smallest integer is 0. However, this is incorrect. The smallest integer is actually -∞ (negative infinity), as there is no lower limit to the set of integers. Therefore, the correct answer is False.
15.
Evaluate : 6 more than -10
Correct Answer
B. -4
Explanation
To evaluate "6 more than -10," we start with -10 and add 6. Adding a positive number to a negative number results in a smaller negative number. Therefore, the answer is -4.