A cafe has 9 indoor tables and 11 outdoor tables. Each indoor table has 10 chairs, and each outdoor table has 3 chairs. How many chairs are there in all?
There are 9 indoor tables * 10 chairs = <<9*10=90>>90 chairs.
There are 11 outdoor tables * 3 chairs = <<11*3=33>>33 chairs.
The total number of chairs is 90 chairs + 33 chairs = <<90+33=123>>123 chairs.
#### 123