Toán Lớp 5: Tính nhanh
2020/2019 – 2019/2018 + 1/2019 x 2018
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Toán Lớp 5: Tính nhanh
2020/2019 – 2019/2018 + 1/2019 x 2018
Comments ( 2 )
= 2020/2019 – 2019/2018 + 1/2018 – 1/2019
= (2020/2019 – 1/2019) + (1/2018 – 2019/2018)
= 1 – 1
= 0