Math : Grade 5 : Chapter 1 : Check-Up

1. Write the following numerals in word form and expanded notation.

a. 11,00,948

Eleven lakh nine hundred forty eight.
10,00,000 + 1,00,000 + 900 + 40 + 8.

b. 78,98,001

Seventy eight lakh ninety eight thousand and one.
70,00,000 + 8,00,000 + 90,000 + 8,000 + 1.

c. 5,67,03,670

Five crore sixty seven lakh three thousand six hundred seventy.
5,00,00,000 + 60,00,000 + 7,00,000 + 3,000 + 600 + 70 .

2. Write the figures.

a. Thirty lakh, seventy thousand, three hundred six.

30,70,306.

b. Four crore, seventeen lakh, one hundred ninety five.

4,17,00,195.

c. Forty eight lakh, three hundred five.

48,00,305.

3. Give the place value of the colouredd digit.

a. 4,56,78,923

8,000

b. 54,69,345

60,000

c. 9,76,13,984

9,00,00,000

4. What are the greatest and the smallest 7-digit numbers you can make using the digits 3 ,5, 7 , 1 , 2 ? ( digits may be repeated. ) 

Greatest number (descending order ):

given there are five digits, but we have to make 7 digits number
also we have to form greater number
here, 7 is the greatest digit so, 
we can write that as 77,75,321.

Smallest number (ascending order) :

here, 1 is the smallest digit
hence 11,12,357.

5. Write the number after :

a. 79,98,999

To find the number after add 1 to the number.
so, 79,98,999 + 1 = 79,99,000

b. 15,09,999


To find the number after add 1 to the number.
so, 15,09,999 + 1 = 15,10,000


6. Write the number before :

a. 5,10,000

To find the number before subtract 1 to the number.
so, 5,10,000 - 1 = 5,09,999

b. 13,80,970

To find the number before subtract 1 to the number.
so, 13,80,970 - 1 = 13,80,969

7. Compare using >,< or =.

a. 5,67,98,345 < 5,76,98,435

b. 67,83,009 > 67,08,900

c. LVIII (58) < C (100)

d. LXXI (71) > XLIX (49)

8. Put the commas using the international system and rewrite these statements using the word form of the number.

a. A 15year old boy would have lived for 131400hrs.


A 15year old boy would have lived for 131,400 hrs.
One hundred thirty one thousand four hundred .

b. 2401596 people travelled by planes this year.

2,401,596 people traveled by planes this year.
Two million four hundred one five hundred ninety six.

9. Rewrite these news headlines by rounding.

a. The flight carrying the cricketers from South Africa landed at 8:18 p.m. (Round to the nearest half hour )

8:18 p.m. that is 18mins is closer to 30mins.
hence 8:30 p.m.

b. The stolen collection had 13,078 precious stamps and coins. (Round to the nearest 1000. )

13,078 is close to 13,000.

10 Write the Roman numerals for :

a. 29 

XX1X

b. 12

XII

c. 81

LXXXI

d. 95 

XCV

11. Solve using Roman numerals.

a. XCIII - LXV

XCIII - LXV = 93 - 65 = 28 = XXVIII

b. XLVII + XXXIX 


XLVII + XXXIX  = 47 + 39 = 86 = LXXXVI

c. LXXX - XXXI

LXXX - XXXI = 80 - 31 = 49 = XLIX