Question

evalute the following by using the properties of whole numbers .a)578+999 b) 245×0 c)345×102
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Answer 1

a) 578 + 1000 - 1 = 1578 - 1 = 1577 (associative property of addition)

b) 245 * 0 = 0 (property of zero)

c) 345 * (100 + 2) = 345*100 + 345*2 = 34500 + 690 = 35490(Distributive property of multiplication over addition)

Answer 2

Answer:

Step-by-step explanation:

a)578 + (1000 - 1) = 1578 - 1 = 1577
(associative property of addition)

b) 245 * 0 = 0
(property of zero)

c) 345 x (100 + 2)
= 345 x 100 + 345 x 2
= 34500 + 690
= 35490
(Distributive property of multiplication over addition)