1.

Add1. 5 cm 9 mm + 8 cm 7 mm

Answer»

cm mm 5 98 714 6

cm mm5 78 914 6

5 cm 9 mm+ 8 cm 7 mm_______________ 13 cm 16 mm

but 1cm = 10mm, therefore 13cm 16mm can be written as 14cm 6mm



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