AMC 8 L1: Calculation Tricks

Complete problem set with solutions and individual problem pages

Problem 4 Easy

Calculate: 26-25+24-23+\cdots +4-3+2-1=            

Answer:13
Solution

(26-25)+(24-23)+\cdots +(4-3)+(2-1)=13\times1=13

Related Problems
Problem 2 AMC 8 L1: Calculation Tricks
Problem 3 AMC 8 L1: Calculation Tricks
Problem 5 AMC 8 L1: Calculation Tricks
Problem 6 AMC 8 L1: Calculation Tricks
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