257.5×52.5÷1251.5=5? |
|||||||
(a) |
8.5 |
(b) |
13 |
(c) |
16 |
(d) |
17.5 |
257.5×52.5÷1251.5=5? |
|||||||
(a) |
8.5 |
(b) |
13 |
(c) |
16 |
(d) |
17.5 |