On weekends, my mother asked Jiaozi to improve her life for 1 a family of three. Dad ate all of jiaozi's 1 first, then the remaining 3% 1, and mom finally ate the remaining 2% 1. Please answer the following questions.
(1) How much did they eat in jiaozi?
( 1- 1/4)× 1/3= 1/4
A: They ate 1/4 continuously.
(2) How much jiaozi did Mom eat?
1/2× 1/2= 1/4
A: Mom ate 1/4.
(3) Has jiaozi finished eating? How much is left?
1- 1/4×3= 1/4
A: 1/4 remains.
2. A long problem
1 - 1/2- 1/4-……- 1/256= 1/256
Because notice that the former item is twice as much as the latter item, you can draw a conclusion directly.
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