31Ⅹ49+68Ⅹ49+49的简算

31Ⅹ49+68Ⅹ49+49的简算
2025-03-25 21:53:01
推荐回答(5个)
回答(1):

31Ⅹ49+68Ⅹ49+49
=49×(31+68+1)
=49×100
=4900

回答(2):

31×49+68×49+49
=(31+68+1)×49
=100×49
=4900

回答(3):

31X49+68x49+49
=(31+68+1)ⅹ49
=100x49
4900

回答(4):

31X49+68X49+49=(31+68+1)X49=4900

回答(5):

=49×(31+68+1)=4900