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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 5: 21mm2 ==…m2 17cm2 ==-…mm2 7km2 5hm2 ==.dam2 2100mm2 ==-cm2 2m2 12cm2 =–…

Toán Lớp 5: 21mm2 =……………m2
17cm2 =……………….mm2
7km2 5hm2 =………….dam2
2100mm2 =…………….cm2
2m2 12cm2 =…………..cm2
45cm2 =……………….dm2
34dm2 =……………….m2
347 dm2 = ……… cm2
90m2 200cm2 = ……. dm2

Comments ( 2 )

  1. 21mm2 =0,000021m2
    17cm2 =1700mm2
    7km2 5hm2 =705000dam2
    2100mm2 =21cm2 
    2m2 12cm2 =20012cm2
    45cm2 =0,45dm2
    34dm2 =0,34m2
    347dm2 =34700cm2
    90m2 200cm2 =9002dm2

  2. 21 mm²=0,000021m²
    17 cm²=1700 mm²
    7km² 5hm²=70500 dam²
    2100 mm²= 21 cm²
    2 m² 12 cm²=20012 cm²
    45 dm² =0,45 dm²
    34 dm²= 0, 34m²
    347 dm²= 34700 cm²
    90m² 200cm²=9002 dm²
    #Xin hay nhất và 5*#
    #Chúc bạn học tốt#

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222-9+11+12:2*14+14 = ? ( )

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