Viết phân số thích hợp vào chỗ chấm
a) 1mm2= ...............cm2
5mm2 = ...................cm2
84mm2 = ..............cm2
b) 1cm2= ...................dm2
8cm2 = .....................dm2
27cm2 = ...................dm2
a) 1mm2= \(\displaystyle {1 \over {100}} \) cm2
5mm2 = \(\displaystyle {5 \over {100}}\)cm2
84mm2 = \(\displaystyle {84 \over {100}}\)cm2
b) 1cm2= \(\displaystyle {1 \over {100}}\)dm2
8cm2 = \(\displaystyle {8 \over {100}}\)dm2
27cm2 = \(\displaystyle {27 \over {100}}\)dm2
-- Mod Toán lớp 5
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