【正文】 40247。2＋174= = == = =147＋72247。8 94＋420 280247。4= = == = =1205247。2 202＋36247。9 30247。5＋240= = == = =81247。9＋877 921+74 665+774 = = == = =8062 770247。7+65 807＋20247。2= = == = =100－50247。5 35－35247。7 302＋302 = = == = =6008247。3 40＋100247。5 434＋255 = = == = =60－123 64247。8＋456 640＋604 = = == = =56247。7＋36247。6 500(400－396) 72247。9－5= = == = =564+264453 7650(546+4530) 659450= = == = =980+980 9000(4500+250) 6700+72247。8= = == = =146+95 900247。(7168) 180247。942247。6= = == = =12247。6＋453 8(910720) 760540+1110= = == = = 6500+12503500 8030+5600 945032004200= = == = =2400247。6－45 800 7－180 1600247。2＋230 = = == = =4000 247。 8 + 350 320247。8＋64 270 247。 3 9= = == = =630 247。 9 + 320 2800+32 6 300247。69 = = == = =(69002400)247。 5 （72247。9）247。(56247。8) 54 247。 9 8= = == = =280 4 247。5 608+1570 60(2317) = = == = =224＋221 213＋410 40247。2＋174= = == = =147＋72247。8 94＋420 280247。4= = == = = 1205247。2 202＋36247。9 30247。5＋240= = == = =81247。9＋877 665+774 921+74= = == = =8062 770247。7+65 807＋20247。2= = == = =100－50247。5 35－35247。7 302＋302 = = == = =6008247。3 40＋100247。5 434＋255 = = == = =60－123 64247。8＋456 640＋604 = = == = = 57－48247。6 42247。7＋36247。6 374＋198= = == = =104－20247。4 15247。3＋10247。5 25247。5＋42247。6= = == = =35247。5＋87 72247。9－36247。6 214－54247。9 = = == = = 72247。8＋95 36247。4＋212 25247。5－16247。4 = = == = =56247。7＋36247。6 500(400－396) 72247。9－5= = == = =564+264453 7650(546+4530) 659450= = == = =980+980 9000(4500+250) 6700+72247。8= = == = =146+95 900247。(7168) 180247。942247。6= = == = =12247。6＋453 8(910720) 760540+1110= = == = =6500+12503500 8030+5600 945032004200= = == = =2400247。6－45 800 7－180 1600247。2＋230 = = == = =4000 247。 8 + 350 320247。8＋64 270 247。 3 9= = == = =630 247。 9 + 320 2800+32 6 300247。69 = = == = =(69002400)247。 5 （72247。9）247。(56247。8) 54 247。 9 8=