Page 61 - Mathematics_Std_4

Example 2

km 7 hm 5 + km 4 hm 8 =

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Solution Steps
km hm 1. Add hm: 5 hm + = 8 hm 13 hm.

+1 Convert 13 hm into 1 km and 3 hm.
7 5
+ 4 8 Write 3 in the hm column. Take 1 km
3 to the km column.

km hm 2. Add km: 1 km + 7 km + 4 km = 12 km.

+1
7 5 Write 12 in the km column.
+ 4 8

12 3

Therefore, the answer is 12 km 3 hm.

Example 3

km hm dam
7 4 9
+ 6 6 3

Solution

km hm dam
+1 +1
7 4 9

+ 6 6 3
14 1 2

54

06/11/2024 17:17:09
MATHEMATICS STD 4 PB 2024.indd 54
MATHEMATICS STD 4 PB 2024.indd 54 06/11/2024 17:17:09