9.9*2.8+28*0.01 巧算,递等式计算,蟹蟹!

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/24 17:54:02
9.9*2.8+28*0.01 巧算,递等式计算,蟹蟹!
x)Գ2ҳ6230Tx}uu^6Lz/"E"}Rِk=4Emz`qP\KB 8F6yv 

9.9*2.8+28*0.01 巧算,递等式计算,蟹蟹!
9.9*2.8+28*0.01 巧算,递等式计算,蟹蟹!

9.9*2.8+28*0.01 巧算,递等式计算,蟹蟹!
9.9×2.8+28×0.01
=9.9×2.8+2.8×0.1
=(9.9+0.1)×2.8
=10×2.8
=28