Exercise 2.4 (Ascending and descending order of numbers)

Exercise 2.4

I. Write the number name:

a. 11000 Eleven thousand

b. 34000 Thirty four thousand

c. 100000 One lakh.

d. 98,364 Ninety eight thousand three hundred and sixty four.

e. 37,689 Thirty seven thousand six hundred eighty nine.

f. 46,763 Forty six thousand seven hundred and sixty three

g. 4,00,000 Four lakh.

h. 12,00,000 Twelve lakhs.

2. Answer the following:

a. Represent given values in Abacus.

3 Tens crores, 7 crores, 60 ten lakhs, 7 lakhs 4 tens and 7 ones.

b. Find the place value of 7 and 4 of this numbers 34578910

The place value of 7 = 7 × 10000 = 70000

The place value of 4 = 4 × 1000000 = 4000000

c. Write in numerals

a) One crore forty thousand and four − 1,00,40,004

b) Sixty four lakhs and three − 64,00,003

d. Write in words

i. Write the number names of the numbers represented in the Abacus.

One crore twenty one lakhs thirty thousand four hundred and twenty two

Four crore twenty one lakhs thirty three thousands three hundred and twenty two

ii. How many lakhs and hundreds are there in the Abacus? (Figure 2)

Twenty one lakhs and three hundred

e. Find the sum of greatest 4 - digit number and smallest 5- digit numbers.

The greatest 4 digit number  = 9999 ( + )

The smallest 5 digit number = 10000

Sum                                        = 19999

f. Write in ascending order and descending order.

a) 33,058   40,978    97,879    81,421    90,470    47,224

Ascending order

33,058; 40,978; 47,224; 81,421; 90,470; 97,879

Descending order

97,879; 90,470; 81,421; 47,224; 40,978; 33,058

b) 99,999    11,111    22,222    33,333    44,444    66,666

Ascending order

11,111; 22,222; 33,333; 44,444; 66,666; 99,999

Descending order

99,999; 66,666; 44,444; 33,333; 22,222; 11,111

g. Write in standard form: 7 lakhs + 5 thousands + 4 tens + 3 ones

= 705043

h. Add 5 thousands and 3 hundreds to this number 1,34,510

5 thousand and 3 hundred = 5300

 1,34,510 (+)

      5,300

 1,39,810

i. Subtract smallest 6 - digit numbers from greatest 7- digit numbers.

The greatest 7 digit numbers 9999999 (−)

The smallest 6 digit numbers    100000

     Difference =                         9899999