Jawapan

2016-03-14T13:46:28+08:00
0.7 is greater than 0.02
0.7=0.70
0.70-0.02=0.68
but, 0.02 -0.70=-0.68
0.7 remains 0.68 after subtract but 0.02 left -0.68 after subtract
2016-03-14T14:11:55+08:00