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Worksheet: Finding Doubles within 20

Q1:

If I double a number, I add it to itself.

So 2 doubled is 2 + 2 which makes 4.

What is 3 doubled?

Q2:

What number do we get when we double 4?

Q3:

A number is doubled to get 6. What number is it?

Q4:

Find the answer to the following sum which doubles 6.

7 is one more than 6.

Use this to find the answer to the following sum.

Q5:

Find the missing number.