Related Clues:

• Does sum work
• Does basic math
• Increases (with "to")
• ___ and needles
• Safety and bobby
• Puts on the pile
• Immobilizes
• Needles' mates
• Does a certain math problem
• Opposite of subtracts
• Basting aids
• Finds a total
• Chimes in
• ATM necessities
• Uses a buckle