①128×69=
②52×320=
③816÷51=
④880÷64=
⑤★314×27=
⑥★968÷16=
33×30=
4×120=
700×60=
58×103≈
130×6=
15×20=
500×40=
201×49≈
480÷6=
125÷21≈
720÷24=
50×70=
480÷60=
260÷13=
302×3=
7×(128-8)=
270÷30=
4200÷60=
14×60=
(1000-40)÷30=
①308×52=
②680×50=
③160×51=
④13×25=
⑤73×426=
⑥151×29=