0
34 because 1+1 is 2, 1+2 is is 3, 2+3 is 5, 3+5 is 8, so on and so on. to get the next number, you add the 2 preceding numbers. so 13+21 is 34
What else can I help you with?
Continue Learning about Math & Arithmetic
Related Questions
What number comes after 20?
21
Will there be a shrek4?
it comes out MAY 21
What comes next 2.3.5.8.13?
21
What number comes between 205 and 21?
It is: (205+21)/2 = 113
When was When Christmas Comes created?
When Christmas Comes was created on 2011-11-21.
When did When the Boat Comes In end?
When the Boat Comes In ended on 1981-04-21.
When was When My Ship Comes In created?
When My Ship Comes In was created on 1934-12-21.
When is the movie Twilight comes out?
March 21. 2009 March 21. 2009
What is 21 divided by -18?
39
When does twilight the movie come?
it comes out nov. 21
What comes after 20 in spanish?
21 (veinte uno)
What comes before septillion?
sextillion, 10 to the 21.
Trending Questions
What is 20 inches in feet and inches?
What does the name Ameira mean?
What does is 20 x 2 equal?
What are words called that are spelled the same forward as backward?
Is a cylinder a flat faced solid or a rolling solid?
How do you round 115.9 percent to a decimal?
How many inch are there equal a foot?
How do you turn 0.475 into a mixed number?
What is the function of t square?
What is one two three in french?
What is 4x squared plus 16x plus 15?
What is 4 times 10 to the tenth power?
What does CDL VII mean in roman numeral?
What does 4! mean?
What is 12 divided by three?
What did Proffessor Manley West invented?
When two upright blocks support a horizontal one it is called?
What is the factored quadratic trinomial of 2xsquared plus 4x plus 2?
How do you get the altitude of a trapezoid?
What two numbers go in the least common multiple of 20?
Copyright ©2026 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.