用你喜欢的方法计算下面各题415×3836÷4171213×72447×59+37×59(15+23)×1518÷35÷232-613÷926-23[1-(14+38)]÷14.-数学
5 |
9 |
3 |
7 |
5 |
9 |
=(
4 |
7 |
3 |
7 |
5 |
9 |
=1×
5 |
9 |
=
5 |
9 |
⑤(
1 |
5 |
2 |
3 |
=
1 |
5 |
2 |
3 |
=3+10,
=13;
⑥18÷
3 |
5 |
2 |
3 |
=18×
5 |
3 |
3 |
2 |
=45;
⑦2-
6 |
13 |
9 |
26 |
2 |
3 |
=2-
6 |
13 |
26 |
9 |
2 |
3 |
=2-
4 |
3 |
2 |
3 |
=2-(
4 |
3 |
2 |
3 |
=2-2,
=0;
⑧[1-(
1 |
4 |
3 |
8 |
1 |
4 |
=[1-
5 |
8 |
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