2023×2022-2021×2020必须用数形结合的方法来计算得数

2025-04-05 15:06:02
推荐回答(1个)
回答1:

2023×2022-2021×2020
=(2021+2)×(2020+2)-2021×2020
=2021x2020+2x2021+2x2020 +2x2 --2021×2020
=2x2021+2x2020 +2x2
=8080 +6
=8086