Difference between revisions of "2020 AMC 10B Problems/Problem 1"

(Problem 1)
(Solution)
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We know that when we subtract negative numbers, <math>a-(-b)=a+b</math>.
 
We know that when we subtract negative numbers, <math>a-(-b)=a+b</math>.
  
The equation becomes <math>1+2-3+4-5+6 = \boxed{\textbf{(D)}\ 5}</math>
+
The equation becomes <math>1+2-3+4-5+6 = \boxed{\textbf{(D)}\ 5}</math> ~quacker88
  
 
== Solution ==  
 
== Solution ==  

Revision as of 15:26, 7 February 2020

Problem

What is the value of \[1-(-2)-3-(-4)-5-(-6)?\]

$\textbf{(A)}\ -20 \qquad\textbf{(B)}\ -3 \qquad\textbf{(C)}\  3 \qquad\textbf{(D)}\ 5 \qquad\textbf{(E)}\ 21$

Solution

We know that when we subtract negative numbers, $a-(-b)=a+b$.

The equation becomes $1+2-3+4-5+6 = \boxed{\textbf{(D)}\ 5}$ ~quacker88

Solution

Solution

Video Solution

YouTube Link

See Also

2020 AMC 10B (ProblemsAnswer KeyResources)
Preceded by
First Problem
Followed by
Problem 2
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All AMC 10 Problems and Solutions

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