In the third grade of primary school, Little Bear moved five corns. After his mother gave him three, his mother's corns were twice as big as his. How much corn did his mother move?
Analysis: After my mother gave three bears, the bear now has corn 5+3=8 (one), and my mother is twice as big as him, so my mother now has 8×2= 16 (one), and finally +3.
Solution: Bear: 5+3=8 (each)
Mom: 8×2+3= 19 (pieces)
A: Mom moved 19 corn.