Related Clues:

• Chime in
• Work with a calculator, in a way
• Do some math
• Do the math, maybe
• Speak further
• Total (up)
• Be logical
• Amount (to)
• Find the sum of
• Toss into the mix, e.g.
• Amount to
• Put together with
• Find a sum
• Interpose
• Supplement (with ''to'')