Insert Mode

Question 1

Ctrl-h

Answer 1

delete back one character

Question 2

Ctrl-w

Answer 2

delete back one word

Question 3

Ctrl-u

Answer 3

delete back to start of line

Question 4

Ctrl-[

Answer 4

switch back to normal mode

Question 5

Ctrl-o

Answer 5

switch to insert normal mode

Question 6

Ctrl-r{register}

Answer 6

paste text from register, where {register} is the address of the register

Question 7

Ctrl-r=

Answer 7

evaluate an expression and insert the result

Question 8

Ctrl-v{123}, Ctrl-vu{1234}

Answer 8

insert by character code (supports Unicode)

Question 9

Ctrl-v{char}{char}

Answer 9

insert digraph

Question 10

R, gR

Answer 10

enter replace or virtual replace mode