There are 40 students in the gym 9 students are jumbing robes how many students are not jumbing robes
Draw place value

Relax

Respuesta :

Place value-
40
- 9
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you regroup the 4 to 3 . the zero becomes a 10. 10-9=1 3 minus nothing is 3
so the answer is 31!
i hope this helps!