问题
解答题
列式计算 (1)一个数的
(2)
(3)1减去
|
答案
(1)设这个数是x
3 |
4 |
15%x=4.5
15%x÷15%=4.5÷15%
x=30
答:这个数是30.
(2)(
4 |
3 |
8 |
5 |
4 |
3 |
3 |
4 |
=
44 |
15 |
25 |
12 |
=1
51 |
125 |
答:商是1
51 |
125 |
(3)(1-
8 |
9 |
3 |
4 |
4 |
9 |
=(1-
2 |
3 |
4 |
9 |
=
1 |
3 |
4 |
9 |
=
3 |
4 |
答:商是
3 |
4 |
列式计算 (1)一个数的
(2)
(3)1减去
|
(1)设这个数是x
3 |
4 |
15%x=4.5
15%x÷15%=4.5÷15%
x=30
答:这个数是30.
(2)(
4 |
3 |
8 |
5 |
4 |
3 |
3 |
4 |
=
44 |
15 |
25 |
12 |
=1
51 |
125 |
答:商是1
51 |
125 |
(3)(1-
8 |
9 |
3 |
4 |
4 |
9 |
=(1-
2 |
3 |
4 |
9 |
=
1 |
3 |
4 |
9 |
=
3 |
4 |
答:商是
3 |
4 |