Bài Làm:
1.
a) 341231 x 2 = 682462 | 214325 x 4 = 857300 | b) 102426 x 5 = 512130 | 410536 x 3 = 1 231 608 |
2.
a) 321475 + 423507 x 2 = 321475 + 847014
= 1168489
b) 843275 - 123568 x 5 = 843275 - 617840
= 225435
3.
m | 2 | 3 | 4 | 5 |
201634 x m | 403 268 | 604 902 | 806 536 | 1 008 170 |
4.
a) 969969 x 5 > 4 x 969969
b) 785989 x 6 < 785989 x 9
c) (568009 + 96125) x 8 > (568009 - 96125) x 8