16×4=
125×8=
19×5=
240÷4=
20×45 =
390÷13 =
560÷14 =
480÷80 =
25×12=
550÷50 =
25×4=
56×2=
70×48=
60×37=
128+372=
877+123=
45×800=
327+473=
635+265=
80×72=