Toán Lớp 5: 5086dam²=…..km²
9kg87g=…..hg
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Toán Lớp 5: 5086dam²=…..km²
9kg87g=…..hg
Comments ( 2 )
Answer
5086 dam^2 = 0,5086 dam^2
Ta có:
1 dam^2 = 0,0001 km^2
-> 5086 xx 0,0001 = 0,5086 dam^2
Vậy 5086 dam^2 = 0,5086 dam^2
_____________________________________
9 kg 87 g = 90,87 hg
Ta có:
1 kg = 10 hg
1 g = 0,01 hg
-> 9kg 87 g = 9 xx 10 + 87 xx 0,01 = 90 + 0,87 = 90,87 hg
Vậy 9 kg 87 g = 90,87 hg
5086dam^2 = 0,5086km^2
-> Ta đổi từ 1dam^2 = 0,0001km^2 => 5086dam^2 = 0,5086km^2
—————–
9kg 87g = 90,87hg
-> Ta đổi:
1kg = 10hg => 9kg = 90hg
1g = 0,01hg => 87g =0,87hg