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12.5乘3.6怎么简便计算脱式

0.25×32×12.5 =0.25×(4×8)×12.5 =(0.25×4)×(8×12.5) =1×100 =100

脱式计算 12.5×32 =12.5x8x4 =100x4 =400

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简便算12.5×61×8脱式计算怎么写? =12.5x8x61 =100x61 =6100

0.25×32×12.5用简便计算,并写出运用的定 解: 0.25×32×12.5 =0.25×4x8×12.5 =(0.25×4)x(8×12.5) =1x100 =100 乘法分配律

(1)(18.6-18.6÷3.1)×1.6,=(18.6-6)×1.6,=12.6×1.6,=20.16,(2)12.5×2.5×3.2,=(12.5×8)×(2.5×0.4),=100×1,=100,(3)4.5÷18=0.25,(4)32.9×0.46+5.4×3.29,=3.29×(4.6+5.4),=3.29×10,=32.9.

0.25×3.2×12.5×13/40等于多少脱式计算 解: 0.25×3.2×12.5×13/40 =(0.25×4)×(0.8×12.5)×13/40 =1×10×13/40 =13/4

0.8×0.25×0.4×12.5 =0.8×12.5×(0.25×0.4) =10×0.1 =1

解: 80÷12.5 =80÷25×2 =160÷25 =6.4 答案是: 6.4

4.8×12.5×16乘0.25 =0.6×8×12.5×4×4×0.25 =(8×12.5)×(4×0.25)×(0.6×4) =100×1×2.4 =240

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