Page 15 - Start Up Mathematics_3

5. Write the number names.

(a) 3463 = ______________________________________________________

(b) 7018 = ______________________________________________________

(c) 9920 = ______________________________________________________
(d) 5409 = ______________________________________________________

(e) 6999 = ______________________________________________________

Face Value and Place Value

The face value of a digit is the value of the digit itself.

The place value of a digit depends on its face value and its place or position in a
number.

As we move to the left, the place value keeps on increasing 10 times.

Look at the given example.
Th H T O

7 6 3 2

The face value of 2 is 2.

The place value of 2 is 2 ones or 2.

The face value of 3 is 3.

The place value of 3 is 3 tens or 30.

The face value of 6 is 6.
The place value of 6 is 6 hundreds or 600.

The face value of 7 is 7.

The place value of 7 is 7 thousands or 7000.

Expanded Form and Short Form

Expanded form of a number is the sum of the place values of its digits.
To write the short form of an expanded number, we write the face value of each digit

in the correct place.
Look at the given example.

Short form Expanded form

9516 = 9 Th + 5 H + 1 T + 6 O = 9000 + 500 + 10 + 6

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