Jawapan

2016-10-04T21:17:33+08:00
1cm : 10 mm .
2cm : 20 mm
7cm : 70mm
20mm+70mm : 90 mm
2016-10-04T21:20:44+08:00
2 cm x 10 = 20mm 7cm x 10 = 70cm 20 + 70 = 90cm *darab 10 krn cm kpd mm formula
Tq sebab tolong saya
sama sama .