littenator101 littenator101

06-07-2018
Mathematics

contestada

Here's a subtraction problem that has been solved incorrectly.
2 1
- 9
1 1
Choose the addition sentence that checks this subtraction problem.
A)21
+ 9
30

B)1 1
+ 9
2 0

C)1 1
+ 2 1
3 2

Respuesta :

06-07-2018

The answer would be B!

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