1. Write each number in figures.
(a) Nine crore and three
(b) Ninety-five lakh thirty-two thousand nine hundred and fifty-four
2. Find the place value of the digit 4 in 4,30,219 and 1, 73, 954
3.How many 7-digit numbers are there in all? 4. Write the smallest 5-digit number having four different digits.
5. Write each number in figures according to the international system of numeration. Also express these in expanded form.
(a) Seventy-eight million, fifty-four thousand, one hundred and nine
(b) Four hundred and thirty-six billion, three hundred and nine million, seventy-eight thousand, nine hundred and fifty-two
6. Round each number to the nearest ten thousands.
(a) 29,218
(b) 11, 098
(c) 2,98,456
(d) 23,14,432
7. Write the mathematical expressions for the statements using brackets.
(a) Six is multiplied to the sum of six and five.
(b) Five times the difference of sixteen and three is added to ten.
8. Represent the numbers as Roman numerals.
(a) 98
(b) 105
(c) 178
Answers
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Answer:
1.
(a) 9,00,00,003
(b) 95,32,954
2. 4,00,000 and 4
3. largest 7- digit number - smallest 7digit number
9999999-1000000
= 8999999+1
= 9000000
4. 10,123
5.
(a) 7,854,109
7,000,000+800,000+50,000+4,000+100+9
(b) 43,630,978,952
40,000,000,000+3,000,000,000+600,000,000+30,000,000+900,000+70,000+8,000+900+50+2
6.
(a) 30,000
(b) 11,000
(c) 3,00,000
(d) 23,10,000
7.
(a) 6×(6+5)
(b) 5×(16 - 3) + 10
8.
(a)XCVIII
(b) CV
(c)CLXXVIII
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