290342
Which of the following statements is not true?
1 Both addition and multiplication are associative for whole numbers.
2 Zero is the identity for multiplication of whole numbers.
3 Addition and multiplication both are commutative for whole numbers.
4 Multiplication is distributive over addition for whole numbers.
Explanation:
Zero is the identity for multiplication of whole numbers. We know that, zero is not the identity for multiplication of whole numbers, i.e. a × 0 = 0, where a is any whole number.
07. KNOWING OUR NUMBERS
290343
Mark \((\checkmark)\) against the correct answer in the following: (7268 - 2427) estimated to the nearest hundred is:
1 4900
2 4800
3 4841
4 5000
Explanation:
4900 7268 will be rounded off to the nearest hundred as 7300. 2427 will be rounded of to the nearest hundred as 2400. \(\therefore\) 7300 - 2400 = 4900
07. KNOWING OUR NUMBERS
290344
Mark the correct alternative in the following: The difference between the greatest and the smallest numbers which when rounded off to the nearest thousand as 9000, is:
1 1000
2 990
3 999
4 900
Explanation:
999 9,499 is the greatest number that when rounded off to the nearest thousand will become 9,000. 8,500 is the smallest number that when rounded off to the nearest thousand will become 9,000. \(\therefore\) Difference = 9,499 - 8,500 = 999
07. KNOWING OUR NUMBERS
290345
The largest 5-digit number having three different digits is:
1 98978
2 99897
3 99987
4 98799
Explanation:
99987 For greatest number, we write the digits in descending order. So, the greatest 5-digit number having three different digits is 99987.
07. KNOWING OUR NUMBERS
290346
Greatest five digit number that can be formed using 7, 9, 0, 5, 2 is ________.
1 79052
2 90752
3 97520
4 97052
Explanation:
97520 To form the greatest 5 digit number we write the given numbers in descending order. The number we form is 97520.
290342
Which of the following statements is not true?
1 Both addition and multiplication are associative for whole numbers.
2 Zero is the identity for multiplication of whole numbers.
3 Addition and multiplication both are commutative for whole numbers.
4 Multiplication is distributive over addition for whole numbers.
Explanation:
Zero is the identity for multiplication of whole numbers. We know that, zero is not the identity for multiplication of whole numbers, i.e. a × 0 = 0, where a is any whole number.
07. KNOWING OUR NUMBERS
290343
Mark \((\checkmark)\) against the correct answer in the following: (7268 - 2427) estimated to the nearest hundred is:
1 4900
2 4800
3 4841
4 5000
Explanation:
4900 7268 will be rounded off to the nearest hundred as 7300. 2427 will be rounded of to the nearest hundred as 2400. \(\therefore\) 7300 - 2400 = 4900
07. KNOWING OUR NUMBERS
290344
Mark the correct alternative in the following: The difference between the greatest and the smallest numbers which when rounded off to the nearest thousand as 9000, is:
1 1000
2 990
3 999
4 900
Explanation:
999 9,499 is the greatest number that when rounded off to the nearest thousand will become 9,000. 8,500 is the smallest number that when rounded off to the nearest thousand will become 9,000. \(\therefore\) Difference = 9,499 - 8,500 = 999
07. KNOWING OUR NUMBERS
290345
The largest 5-digit number having three different digits is:
1 98978
2 99897
3 99987
4 98799
Explanation:
99987 For greatest number, we write the digits in descending order. So, the greatest 5-digit number having three different digits is 99987.
07. KNOWING OUR NUMBERS
290346
Greatest five digit number that can be formed using 7, 9, 0, 5, 2 is ________.
1 79052
2 90752
3 97520
4 97052
Explanation:
97520 To form the greatest 5 digit number we write the given numbers in descending order. The number we form is 97520.
290342
Which of the following statements is not true?
1 Both addition and multiplication are associative for whole numbers.
2 Zero is the identity for multiplication of whole numbers.
3 Addition and multiplication both are commutative for whole numbers.
4 Multiplication is distributive over addition for whole numbers.
Explanation:
Zero is the identity for multiplication of whole numbers. We know that, zero is not the identity for multiplication of whole numbers, i.e. a × 0 = 0, where a is any whole number.
07. KNOWING OUR NUMBERS
290343
Mark \((\checkmark)\) against the correct answer in the following: (7268 - 2427) estimated to the nearest hundred is:
1 4900
2 4800
3 4841
4 5000
Explanation:
4900 7268 will be rounded off to the nearest hundred as 7300. 2427 will be rounded of to the nearest hundred as 2400. \(\therefore\) 7300 - 2400 = 4900
07. KNOWING OUR NUMBERS
290344
Mark the correct alternative in the following: The difference between the greatest and the smallest numbers which when rounded off to the nearest thousand as 9000, is:
1 1000
2 990
3 999
4 900
Explanation:
999 9,499 is the greatest number that when rounded off to the nearest thousand will become 9,000. 8,500 is the smallest number that when rounded off to the nearest thousand will become 9,000. \(\therefore\) Difference = 9,499 - 8,500 = 999
07. KNOWING OUR NUMBERS
290345
The largest 5-digit number having three different digits is:
1 98978
2 99897
3 99987
4 98799
Explanation:
99987 For greatest number, we write the digits in descending order. So, the greatest 5-digit number having three different digits is 99987.
07. KNOWING OUR NUMBERS
290346
Greatest five digit number that can be formed using 7, 9, 0, 5, 2 is ________.
1 79052
2 90752
3 97520
4 97052
Explanation:
97520 To form the greatest 5 digit number we write the given numbers in descending order. The number we form is 97520.
290342
Which of the following statements is not true?
1 Both addition and multiplication are associative for whole numbers.
2 Zero is the identity for multiplication of whole numbers.
3 Addition and multiplication both are commutative for whole numbers.
4 Multiplication is distributive over addition for whole numbers.
Explanation:
Zero is the identity for multiplication of whole numbers. We know that, zero is not the identity for multiplication of whole numbers, i.e. a × 0 = 0, where a is any whole number.
07. KNOWING OUR NUMBERS
290343
Mark \((\checkmark)\) against the correct answer in the following: (7268 - 2427) estimated to the nearest hundred is:
1 4900
2 4800
3 4841
4 5000
Explanation:
4900 7268 will be rounded off to the nearest hundred as 7300. 2427 will be rounded of to the nearest hundred as 2400. \(\therefore\) 7300 - 2400 = 4900
07. KNOWING OUR NUMBERS
290344
Mark the correct alternative in the following: The difference between the greatest and the smallest numbers which when rounded off to the nearest thousand as 9000, is:
1 1000
2 990
3 999
4 900
Explanation:
999 9,499 is the greatest number that when rounded off to the nearest thousand will become 9,000. 8,500 is the smallest number that when rounded off to the nearest thousand will become 9,000. \(\therefore\) Difference = 9,499 - 8,500 = 999
07. KNOWING OUR NUMBERS
290345
The largest 5-digit number having three different digits is:
1 98978
2 99897
3 99987
4 98799
Explanation:
99987 For greatest number, we write the digits in descending order. So, the greatest 5-digit number having three different digits is 99987.
07. KNOWING OUR NUMBERS
290346
Greatest five digit number that can be formed using 7, 9, 0, 5, 2 is ________.
1 79052
2 90752
3 97520
4 97052
Explanation:
97520 To form the greatest 5 digit number we write the given numbers in descending order. The number we form is 97520.
290342
Which of the following statements is not true?
1 Both addition and multiplication are associative for whole numbers.
2 Zero is the identity for multiplication of whole numbers.
3 Addition and multiplication both are commutative for whole numbers.
4 Multiplication is distributive over addition for whole numbers.
Explanation:
Zero is the identity for multiplication of whole numbers. We know that, zero is not the identity for multiplication of whole numbers, i.e. a × 0 = 0, where a is any whole number.
07. KNOWING OUR NUMBERS
290343
Mark \((\checkmark)\) against the correct answer in the following: (7268 - 2427) estimated to the nearest hundred is:
1 4900
2 4800
3 4841
4 5000
Explanation:
4900 7268 will be rounded off to the nearest hundred as 7300. 2427 will be rounded of to the nearest hundred as 2400. \(\therefore\) 7300 - 2400 = 4900
07. KNOWING OUR NUMBERS
290344
Mark the correct alternative in the following: The difference between the greatest and the smallest numbers which when rounded off to the nearest thousand as 9000, is:
1 1000
2 990
3 999
4 900
Explanation:
999 9,499 is the greatest number that when rounded off to the nearest thousand will become 9,000. 8,500 is the smallest number that when rounded off to the nearest thousand will become 9,000. \(\therefore\) Difference = 9,499 - 8,500 = 999
07. KNOWING OUR NUMBERS
290345
The largest 5-digit number having three different digits is:
1 98978
2 99897
3 99987
4 98799
Explanation:
99987 For greatest number, we write the digits in descending order. So, the greatest 5-digit number having three different digits is 99987.
07. KNOWING OUR NUMBERS
290346
Greatest five digit number that can be formed using 7, 9, 0, 5, 2 is ________.
1 79052
2 90752
3 97520
4 97052
Explanation:
97520 To form the greatest 5 digit number we write the given numbers in descending order. The number we form is 97520.
