Worksheet: Relating Addition to Subtraction: Numbers up to 20
In this worksheet, we will practice writing a family of addition and subtraction facts linking three numbers up to 20.
16 plus 3 is 19. Which number sentence is missing from the number sentences
Use to fill in the blanks in these number sentences.
We know that . Use the picture to check this if you need to.
Use this addition fact to find the missing number in the subtraction sentence .