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
=22×
2 |
11 |
3 |
16 |
=32+33,
=65;
(4)
9 |
35 |
8 |
11 |
3 |
35 |
9 |
11 |
=
8 |
35 |
9 |
11 |
3 |
35 |
9 |
11 |
=(
8 |
35 |
3 |
35 |
9 |
11 |
=
11 |
35 |
9 |
11 |
=
9 |
35 |
(5)999
8 |
9 |
8 |
9 |
8 |
9 |
=999
8 |
9 |
8 |
9 |
8 |
9 |
1 |
9 |
1 |
9 |
1 |
9 |
1 |
3 |
=(999
8 |
9 |
1 |
9 |
8 |
9 |
1 |
9 |