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1.5×0.98简便计算

1.5*(1-0.02)=1.5-0.03=1.47

解:依题意得算式, 1.5×0.98 =1.5×(1-0.02) =1.5×1-1.5×0.02 =1.5-0.03 =1.47 即1.5×0.98=1.47

98.3*0.15+6.17*1.5 =98.3*0.15+61.7*0.15 =(98.3+61.7)*0.15 =160X0.15 =24

0.15×98.3 +6.17×1.5 =1.5x9.83+6.17x1.5 =1.5x(9.83+6.17) =1.5x16 =24

98*(1+1/2)=98+49=147

错,对对。燃烧吧小天快拉倒小气的咋知道的我咋说啊华为他说我

6.98×0.48+69.8×0.037+0.698×1.5 =6.98x0.48+6.98x0.37+6.98x0.15 =6.98x(0.48+0.37+0.15) =6.98x1 =6.98

大金空调1.5匹.氟0.98是指本机加氟量是0.98Kg(公斤 重量)、千万记住不是压力。

(1)2.98×0.65-0.5=(3-0.02)x(0.5+0.15)-0.5 =1.5+0.45-0.01-0.003-0.5 =1.437 (2)5.4×0.75÷1.5=5.4×{(3x0.25)÷(3x0.5)} =5.4x0.5 =2.7

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