Calculate 37 − 20.
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✅ Correct answer: B. 17
a: 19 | b: 17 | c: 22 | d: 15
10 random questions, instant feedback, earn XP.
Tap an option to check your answer.
✅ Correct answer: B. 17
a: 19 | b: 17 | c: 22 | d: 15
10 random questions, instant feedback, earn XP.