Jenn and David ate a total of 3/10 + 4/10 = <<3/10+4/10=7/10>>7/10 of the candy bar.
So, 1 - 7/10 = <<1-7/10=3/10>>3/10 of the candy bar is left. Answer: \boxed{\dfrac{3}{10}}.
Jenn and David shared a candy bar. Jenn ate three tenths. David ate four tenths. How much is left?
3 answers
three tens and six ones
Three tens is equal to 30, and six ones is equal to 6. Therefore, three tens and six ones is equal to 30 + 6 = <<30+6=36>>36. Answer: \boxed{36}.