Page 143 - SK Year 5 Mathematics DLP

Days to hours

1 The flight duration from Kuala Lumpur
International Airport to Jeju Island
Airport in Korea is 0.25 day.

Convert 0.25 day to hours.
Multiply 24 hours to
1
0.25 day = hours 1 2 convert the unit of
0.25 days to hours.
Method 1
Cara 1
× 24 hours
0.25 day = (0.25 × 24) hours 1 00
= 6 hours +05 00
06.00 hours
Cara 2
Method 2

1 2 3 4
0 = 1 day
4 4 4 4

0 6 12 18 24 hours

1 6
0.25 day = ( × 24) hours
4
1
= 6 hours
0.25 day = 6 hours

0.25 day is 6 hours.

2 1.75 days = hours Method 2
1 1
Method 1 3 2 1.75 days = 1 day + 0.75 day
1 .75 = 24 hours + 0.5 day
× 24 hours + 0.25 day
1
7 00 = 24 hours + 12 hours
+35 00 + 6 hours
42.00 hours
= 42 hours

1.75 days = 42 hours

• Relate 0.5 day to 12 hours, 0.25 day to 6 hours for an easier 135
4.2.2 (ii)
calculation.