What is 170 + 470?
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✅ Correct answer: D. 640
a. 639 b. 641 c. 638 d. 640
10 random questions, instant feedback, earn XP.
Tap an option to check your answer.
✅ Correct answer: D. 640
a. 639 b. 641 c. 638 d. 640
10 random questions, instant feedback, earn XP.