(1)208×36=7488;
208
[×36/1248]
[624 /7488];
验算:
36
[×208/ 288]
[72/7488];
(2)6124÷45=136…4,
136
45
6124
[45 /162]
[135 / 274]
[270/4];
验算:
136
[×45/680]
[544 /6120]
[+4/6124];
(3)11520÷24=480;
480
24
11520
[96 /192]
[192/0];
验算:
480
[×24/192]
[96 /11520];
(4)185×24=4440;
185
[×24/740]
[370 /4440];
验算:
24
[×185/ 120]
192
24
.
4440.