KNOWING OUR NUMBERS Place value Face value Ascending

KNOWING OUR NUMBERS Ø Place value Ø Face value Ø Ascending and Descending order Ø Greatest and Smallest numbers

KNOWING OUR NUMBERS Ø Place value : Place value of a digit in a number depends upon the position of the or the place it occupies in the place value chart. Ø For example - place value of 5 in 4578 is 500 as 5 is in the hundreds place so place value of 5 in 4578 is 5 X 100 = 500. Ø Face value : Face value of any digit in a number is the digit itself , it independent of its position in the number. It is always the digit itself. Ø For example – Face value of 3 in 3456 is 3 and also face value of 3 in 5637 is 3.

KNOWING OUR NUMBERS Ø 1. Write the place value and the face value of the underlined digits in the following numerals : Ø a. 328740531 Ø b. 317432 Ø c. 81273 Ø d. 4031652

KNOWING OUR NUMBERS

KNOWING OUR NUMBERS �ASCENDING AND DESCENDING ORDER �Ascending order : - Ascending order means arrangement from the smallest to the greatest. �Descending order : - Descending order means arrangement from the greatest to the smallest.

� 1. �a. �b. KNOWING OUR NUMBERS Arrange the following numbers in ascending order : 8287642; 8278642; 8287462; 8287362; 910000003; 9103; 910003 im

Ø 2. Ø Ø KNOWING OUR NUMBERS Arrange the following numbers in descending order : a. 330033033; 333300033; 330033330; 330003033 b. 321397642; 3412976; 9317624; 321679

KNOWING OUR NUMBERS Ø Greatest and Smallest Numbers – Ø To form the greatest number from a given set of digits , we write the digits in the descending order. Ø To form the smallest number from a given set of digits , we write the digits in the ascending order, however we never start a number with the digit 0.

KNOWING OUR NUMBERS Ø 3. Form the smallest and the greatest 4 – digit numbers using the digits given below ( Without repetition ) : Ø a. 2, 0, 1, 3 Ø b. 6, 4, 9, 3 Ø c. 3, 2, 1, 6

KNOWING OUR NUMBERS Ø 4. Form the smallest and the greatest 5 – digit numbers using the digits given below (repetition of digits is allowed and all the digits should used ) : Ø a. 6, 3, 8 Ø 9, 0, 4 Ø 3, 1, 4 Ø 7, 5, 2

KNOWING OUR NUMBERS � 5. Write the greatest 9 – digit number using four different digits.

KNOWING OUR NUMBERS Ø 6. Make the greatest and the smallest 4 – digit numbers using any four different digits with the condition given below. Ø a. 8 is always in the ones place Ø b. 3 is always in the tens place Ø c. 4 is always in the thousand place Ø d. 6 is always in the thousand place

� 7. �a. �b. KNOWING OUR NUMBERS Write the greatest 8 – digit number using Only 2 digits All different digits