Number bonds for 9 song. Number bonds are simply the pairs of numbers that make up a given number. Number bonds can also be called number partners or number pairs. Number bonds are a very important foundation for understanding how numbers work. Number bonds create fluency for composing and decomposing numbers for addition and subtraction. Number Bonds 9 introduces the different combinations of numbers for the number nine. Lyrics: Number bonds, number bonds that make 9 I know my number bon