← Doubling and Halving Cards you don't know will reappear later

You should create an account to save your progress. It only takes a minute!
mastered

32 x 25

800

Half 32 to 16, and double 25 to 50. Then, half 16 again to 8, and double 50 again to 100. Then, 32(25) = 16(50) = 8(100) = 800.

I knew this card I didn't know this card
You have mastered 0 out of 20 cards
You are reviewing 0 out of 20 cards
You are learning 0 out of 20 cards

Have feedback about this card? Please email help@magoosh.com