72D) (2 + 4 + 6 +… + 100)
Câu 1: Tính nhanh:
a) 19.64 + 76.34
b) 35.12 + 65.13
c) 136.68 + 16.72
d) (2 + 4 + 6 +… + 100). ( 36.33 – 108.111)
e) 2022.2022 – 2020.2024
Câu 1: Tính nhanh:
a) 19.64 + 76.34
b) 35.12 + 65.13
c) 136.68 + 16.72
d) (2 + 4 + 6 +… + 100). ( 36.33 – 108.111)
e) 2022.2022 – 2020.2024