Question

1. Find the sum of -52 and -87.
2. Find the sum of -2035 and 285.
3. Subtract -46 from 144.
What is the additive inverse of 285- (135+150)?
5.
Subtract the sum of -1878 and 878 from 3000.
6.
Simplify (-13-(-27)} + {-25-(-40)).
7.
Find the value of 1487 x 325 + (-487) * 325
8.
Find the value of 2895 x 99-(-2895).​

Answer 1

Step-by-step explanation:

1.) -52 + -87 = -139

2.) -2035 + 285 = -1750

3.) 144 - (-46) = 144 + 46 = 190

4.) Let the additive inverse be x , then

x + { 285 -( 135 + 150 ) } = 0

x + { 285 - 285 } = 0

x + 0 = 0

x = 0

additive inverse of 285 - ( 135 + 150 ) is 0

5.) 3000 - ( -1878 + 878 )

3000 - ( -1000)

3000 + 1000

4000

6.) {-13-(-27)} + {-25-(-40)}

{-13 + 27 } + { -25 + 40 }

{ 14 } + { 15}

29

7.) 1487 x 325 + (-487) × 325

325× { 1487 + ( - 487 ) }

325× { 1487 - 487 }

325 × { 1000}

325000

8.) 2895 x 99-(-2895)

2895 × 99 + 2895

2895×{ 99 + 1 }

2895 × { 100 }

2895 × 100

289500

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