下面各题能简便计算的要简便计算.725÷[(34-25)×25]0.25×3.2×12.522×(211+316)×8935×811+335×91199989+9989+989110+140+188+1154.-数学
1 |
9 |
1 |
3 |
=1000+100+10-
1 |
3 |
=1110-
1 |
3 |
=1109
2 |
3 |
(6)
1 |
10 |
1 |
40 |
1 |
88 |
1 |
154 |
=
1 |
2×5 |
1 |
5×8 |
1 |
8×11 |
1 |
11×14 |
=
1 |
3 |
1 |
2 |
1 |
5 |
1 |
5 |
1 |
8 |
1 |
8 |
1 |
11 |
1 |
11 |
1 |
14 |
=
1 |
3 |
1 |
2 |
1 |
5 |
1 |
5 |
1 |
8 |
1 |
8 |
1 |
11 |
1 |
11 |