① 426×52=
②506×24=
③ 240×38=
④784÷26=
⑤117÷13=
⑥597÷28=
验算:
82×40= 25×2= 90×40=
190×5= 200×61= 200×30=
4×6+6=
5×7+6=
6×6+4=
8×5-7=
8×3+8=
8×9-9=
①28×103=
②45×180=
③609÷87=
④784÷49=
⑤*960÷70=
①178×28=
②560×17=
③27×146=
④109×38=
⑤226×39=
⑥250×60=
999毫升1升 2升200毫升
4000毫升4升 4500毫升4升
30×8+230×(8+2) 960÷24960÷8÷3
+ = 50÷50%= = 3 -1.125=
1.9÷2.5÷0.4= ( )×18= = 1- =