Worksheet: Related Addition Equations

In this worksheet, we will practice writing a family of addition facts linking three numbers up to 10 and modeling them with part–whole models.


There are 11 black cats and 6 white cats for sale.

The total number of cats is 11+6=17.

Which of the following is also an addition sentence for the number of cats?

  • A11+17=6
  • B6+17=11
  • C6+11=17

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