一條數學題~

30/ 1/2 + 10
= 30 * 2 +10
= 60 + 10
= 70

Answer: 70

30/0.5+10
=70

30除以2分之1等於:
30x2=60
再:60+10=70
60
+10
-------
70

一條式:
(30x2)+10
--------------
......1......

‘30除以二分之一再加上10等於70’

30除以二分之一再加上10
=30x2+10
=60+10
=70

30 / 1/2 + 10
= 30 x 2 + 10 (分數除數, 將除數倒轉, 由除1/2, 變成乘2/1, 即乘2)
= 70

30 除 1/2 + 10
=30 * 2 + 10
=60 + 10
=70//

30
____

1/2

when 1/2 putting on top, the demonitor need to reverse, i.e. 30 x 2 + 10

The answer: 70

70











.

30除以二分之一再加上10
=70

10又1 over 60