AMC 8 L1: Calculation Tricks

Complete problem set with solutions and individual problem pages

Problem 16 Easy

Calculate: 1+3+5+7+9+11+\cdots +29=            

Answer:225

~~~~~1+3+5+7+9+11+\cdots +29

=\left( 1+29 \right)\times 15\div 2

=225

Related Problems
Problem 14 AMC 8 L1: Calculation Tricks
Problem 15 AMC 8 L1: Calculation Tricks
Problem 17 AMC 8 L1: Calculation Tricks
Problem 18 AMC 8 L1: Calculation Tricks
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