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What is the sum of 44 + 45 + 46 + 47 ... + 142 + 143

 Apr 14, 2022
 #1
avatar+114 
-2

Umm You do now there a calculator on here fo you to use?That can help you

coolcoolcool

 Apr 14, 2022
 #2
avatar+124592 
+2

n = number of terms =   143 - 44 + 1 =   100

 

The sum is  given by

 

n ( first term + last term) / 2 =

 

100 ( 44 + 143)/2  =

 

50 ( 187)   = 9350

 

cool cool cool

 Apr 14, 2022
 #3
avatar+578 
+3

We know that 143+44 = 187

 

We also know that 142+45 = 187

 

I think you got the idea by now:

 

We eventually work all the way in giving us 187*50

 

==== 9350

 Apr 14, 2022

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