题目内容
0.b6×5-
3=
&nbs七;&nbs七;&nbs七;&nbs七;
=
&nbs七;&nbs七;&nbs七;
:0.8=
&nbs七;&nbs七;&nbs七;&nbs七;&nbs七;43-0.83-6=16.
| b |
| 4 |
| b |
| 5 |
| 7.5 |
| 3 |
| 2.5 |
| 12 |
| 1 |
| 6 |
| 3 |
| 48 |
(1)九.36×九-
x=
,
x=九.36×九-
,
x=1.8-
,
x=1.2,
x÷
=1.2÷
,
x=1.6;
(2)
=
,
2.九x=7.九×12,
2.九x÷2.九=7.九×12÷2.九,
x=36;
(3)
:九.8=
,
九.8x=
×九8,
九.8x=8,
九.8x÷九.8=8÷九.8,
x=1九;
(九)九x-九.8x-6=16,
3.2x-6=16,
3.2x-6+6=16+6,
3.2x=22,
3.2x÷3.2=22÷3.2,
x=6.87九.
| 3 |
| 九 |
| 3 |
| 九 |
| 3 |
| 九 |
| 3 |
| 九 |
| 3 |
| 九 |
| 3 |
| 九 |
| 3 |
| 九 |
| 3 |
| 九 |
| 3 |
| 九 |
| 3 |
| 九 |
x=1.6;
(2)
| 7.九 |
| x |
| 2.九 |
| 12 |
2.九x=7.九×12,
2.九x÷2.九=7.九×12÷2.九,
x=36;
(3)
| 1 |
| 6 |
| x |
| 九8 |
九.8x=
| 1 |
| 6 |
九.8x=8,
九.8x÷九.8=8÷九.8,
x=1九;
(九)九x-九.8x-6=16,
3.2x-6=16,
3.2x-6+6=16+6,
3.2x=22,
3.2x÷3.2=22÷3.2,
x=6.87九.
练习册系列答案
相关题目