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Free Online Worksheet to practice adding nine by using the make 10 strategy.

Objective:

• I know how to add 9 to another number fluently by making ten.

Have a look at this video if you need to revise how to use the Make 10 strategy when adding nine.

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
When adding nine to a number, we can reduce the number by 1 and then add to 10.

9 + 8 = 9 + 1 + 7 = 10 + 7 =

9 + 5 = 9 + 1 + 4 = 10 + 4 =

9 + 4 = 9 + 1 + 3 = 10 + 3 =

9 + 7 = 9 + 1 + 6 = 10 + =

9 + 9 = 9 + 1 + 8 = 10 + =

9 + 6 = 9 + 1 + 5 = 10 + =

9 + 6 = 10 + =

9 + 4 = 10 + =

9 + 8 = 10 + =

9 + 3 =

9 + 5 =

9 + 7 =

9 + 8 =

9 + 2 =

9 + 4 =

9 + 6 =

9 + 9 =

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