1. Knowing Our Numbers Worksheet With Answers Page 25
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2514. Find the estimated quotient for 473 ÷ 19.
15. Express the following numbers as Roman numerals:
(a) 446
(b) 341
(c) 66
(d) 227
(e) 49
(f) 999
H
O
T
S
IGHER
RDER
HINKING
KILLS
1. Write the greatest four-digit number using 2 different digits.
2. The place value of which digit is always equal to its face value irrespective of its position?
3. Find the difference between the greatest and the smallest numbers each of which on rounding
off gives 5,400.
4. After some decades, India’s population according to a survey will be 1,329,854,134. Write this
number in words according to:
(a) International system of numeration
(b) Indian system
5. Find the difference between the largest and the smallest four-digit numbers formed by the
digits 0, 2, 5 and 7.
6. The distance between two towns is 36 km 500 m. A bus makes 8 rounds between the two towns
in a day. How much distance will it cover in a week?
Group Activity
Make the Greatest Number
Objective: To learn about place value of digits
Material required: Flash cards numbered 0 to 9
Directions: Try to build the greatest number
· The students of the class are divided into groups of 10 each. Each student of the group is
assigned a digit from 0 to 9, whose flash card they can hold.
· Ten slips of paper with digits 0 to 9 written on them are folded and put in a box.
· The teacher draws a slip and reads the digit. The digit called once is not repeated.
· Students from each group holding the flash card bearing the digit called take positions of
their choice marked U (unit), T (ten), H (hundred), Th (thousand), T.Th (ten thousand) on the
floor designated for their group.
T.Th
Th
H
T
U
T.Th
Th
H
T
U
T.Th
Th
H
T
U
Group I
Group II
Group III
· The procedure is repeated till all the five slots are occupied by the students. The positions
once taken cannot be changed or interchanged with others.
Result
· The group with the greatest number formed wins the game and the one with the second
highest number comes second. The group with next number in descending order is third and
so on. The group with the smallest number comes last.
Note: The game can be played for few more rounds.
25
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