怎样简便就怎样算.49×15÷4536×(23+16-34)18×58+42÷84-511-611(15-14×47)×82145÷58-12÷58.-六年级数学
1 |
6 |
3 |
4 |
=36×
2 |
3 |
1 |
6 |
3 |
4 |
=24+6-27,
=30-27,
=3;
(3)
1 |
8 |
=(58+42)×
1 |
8 |
=100×
1 |
8 |
=12.5;
(4)4-
5 |
11 |
6 |
11 |
=4-(
5 |
11 |
6 |
11 |
=4-1,
=3;
(5)(15-14×
4 |
7 |
8 |
21 |
=(15-8)×
8 |
21 |
=7×
8 |
21 |
=2
2 |
3 |
(6)
4 |
5 |
5 |
8 |
1 |
2 |
5 |
8 |
=
32 |
25 |
4 |
5 |
=