简算下面各题 2.5×(2.8×0.04) (8×2.57)×1.25 36×0.25+64×0.25 0.04×29+0.04
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![简算下面各题 2.5×(2.8×0.04) (8×2.57)×1.25 36×0.25+64×0.25 0.04×29+0.04](/uploads/image/z/247712-32-2.jpg?t=%E7%AE%80%E7%AE%97%E4%B8%8B%E9%9D%A2%E5%90%84%E9%A2%98+2.5%C3%97%282.8%C3%970.04%29+%EF%BC%888%C3%972.57%EF%BC%89%C3%971.25+36%C3%970.25%2B64%C3%970.25+0.04%C3%9729%2B0.04)
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简算下面各题 2.5×(2.8×0.04) (8×2.57)×1.25 36×0.25+64×0.25 0.04×29+0.04
简算下面各题 2.5×(2.8×0.04) (8×2.57)×1.25 36×0.25+64×0.25 0.04×29+0.04
简算下面各题 2.5×(2.8×0.04) (8×2.57)×1.25 36×0.25+64×0.25 0.04×29+0.04
2.5×(2.8×0.04)
=2.5*4*2.8/100
=28/100
=0.28
(8×2.57)×1.25
=8*1.25*2.57
=10*2.57
=25.7
36×0.25+64×0.25
=(36+64)*0.25
=100*0.25
=25
0.04×29+0.04*71
=0.04*(29+71)
=0.04*100
=4
2.5×(2.8×0.04)=2.5×0.04×2.8=0.1×2.8=0.28
(8×2.57)×1.25 =8×1.25 ×2.57=10×2.57=25.7
36×0.25+64×0.25 =(36+64)×0.25=100×0.25=25
0.04×29+0.04=0.04×29+0.04×1=0.04×(29+1)=0.04×30=1.2
0.28 25.7 25 1.2