Use Distributive Law to Evaluate : 385 X 1004

Use distributive law to evaluate :
385 x 1004

योग

385 x 1004
= 385 x (1000 + 4)
= 385 x 1000 x 385 x 4
= 385000 + 1540 = 386540

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अध्याय 3: Natural Numbers and Whole Numbers (Including Number Line and Patterns) - Exercise 5 (C)

अध्याय 3 Natural Numbers and Whole Numbers (Including Number Line and Patterns)
Exercise 5 (C) | Q 3.2

Fill in the blank:
286 x 1 = ______

By re-arranging the given numbers evaluate :
21 + 22 + 23 + 24 + 25 + 75 + 76 + 77 + 78 + 79

Which property of addition is satisfied by :
16 + 0= 16

State True or False:
The sum of two odd numbers is an even number

State True or False:
The sum of an even number and an odd number is odd number.

State True or False:
If x is a whole number then -x is also a whole number.

Fill in the blank :
23 x 56 = 20 x 56 + ______ x 56

By re-arranging the given numbers evaluate :
225 x 20 x 50 x 4

In each of the following patterns, construct next figure.
In each case, if n denotes the number of figure and F denotes the number of matchsticks used, find F in terms of n.
Also find, in each case, how many matches are required to make the: 16th figure and 30th figure.