Question

Add by converting km into m:
1. 4 km 230 m and 3 km 87 m
2. 53 km 5 m and 23 km 78 m
3. 91 km 92 m, 14 km 120 m and 21 km 210 m
4. 71 km 70 m, 15 km 275 m and 23 km 425 m
5. 73 km 729 m and 82 km 171 m
Add the following without conversion:
1 15 km 825 m + 45 km 265 m​

Answer 1

7317m

76083m

126422m

109770m

155900m

161090m