The same as 30.
In the equation 22 + 17 = 39, the 2 tens from 22 (which is 20) and the 1 ten from 17 (which is 10) combine to make 3 tens, which equals 30.
22+17=39
And notice that the 2 tens and the 1 ten combine to make 3 tens, which is the same as ____________.
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