1、1脱式计算819877 665+774 921+74 = = = = = = 8062 7707+65 80720 2 = = = = = = 100 505 35357 302302 = = = = = = 60083 401005 434255 = = = = = = 60123 648456 640604 = = = = = = 1578 42736 374192= = = = = = 10420 453268 21456 = = = = = =255242 35556 7296 = = = = = = 500(400396) 7295 564+264-453 = = = = = = 6
2、59-450 980+980 9000-(4500+250) = = = = = = 146+45 900(71-68) 1809-7= = = = = = 3645 3 6700+728 7650-(546+4530) = = = = = = 8(910-720) 760-540+1110 6500+1250-350 = = = = = = 9450-3200-4200 2400645 800 7180 = = = = = = 4000 8 + 350 320864 270 3 9 = = = = = = 630 9 + 320 16002230 8030+5600 = = = = = =
3、2800+32 6 30069 (6900-2400) 5 4= = = = = = 999 9 8 280 4 5 608+1570 = = = = = = 96049 35059 4505+1250 = = = = = = 7515125 309066 (38787)X4 = = = = = = 750 5505 (111189) 3 1258100 = = = = = = 62500 60(23-17) （72 9）X8 = = = 5= = = 187 299 299 587496674 266026 26 = = = = = = 32(322) 300(300222) 6520 5
4、= = = = = 687（ 9967） 568（1000 94） 35602090 = = = = = = 96049 35059 4505+1250 = = = = =309066 (387383)X450 7505505 = = = = = = 1258100 62500 81046 6= = = = = = 187 299 299 587496674 266026 26 = = = = = = 32X(32+16) 300(300222) 339010 95 = = = = = = 160 16080 (6900-2400)5 1566+657 = = = = = = 1566+657 6879993 (6900-2400)5 = = = = = = (111 189)3 33329 153X6+657 = = = 7= = = 687（ 9967） 587496674 26602626 = = = = = = 645 3 6700+728 7650-(546+4530) = = = = = =
