①549+867=1416②517-348=169③234*8=1872④56*6=336
6.25
(1)867+158=1025(2)403-227=176(3)800-296=504(4)*1000-284=716验算:(5)*467+542=1009验算:
78*56=4368 78 * 56 468 390 4368验算: 56 * 78 448 392 4368
56*34列竖式计算并验算56*34=1904
867+158=1025403-227=176*1000-284=716验算:*467+542=1009验算:
①81*56=4536验算:②5642÷14=403验算:
搜一下:用竖式计算,第①②题验算.①549+867= ②517-348= ③52÷6= ④356*6
①549+867=1416; 549+8671416;验算: 867+5491416;②517-348=169; 517348 169;验算: 348+169 517;③502*20=10040; 502 * 2010040;④350*6=2100; 350* 6 2100.