Evaluate Using Properties : 679 X 8 + 679 X 2

Evaluate using properties :
679 x 8 + 679 x 2

योग

679 x 8 + 679 x 2
= 679 x (8 + 2) (using distributivity)
= 679 x 10 = 6790

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

अध्याय 5 Natural Numbers and Whole Numbers (Including Patterns)
Exercise 5 (C) | Q 5.1

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

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

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

Evaluate using properties :
7984 x 15 – 7984 x 5

The product of the two numbers is 528. If the product of their unit’s digits is 8 and the product of their ten’s digits is 4; find the numbers.

Does there exist a number such that a ÷ a = a?

Complete the following magic squares:

Of the given two natural numbers, the one having more digits is greater.

Natural numbers are not closed under multiplication.

The smallest natural number is zero.