6983+4570+20460= 7520+8100-6745= 96870-2680-6897=
2306-2349+6950= 35284-3620-4938= 50783+25801+10×730=
3124×6= 82450÷5= 150000÷25=
①36×56=
②84×45=
③64×9=
④564789+125648=
⑤2481072÷254=
⑥564×254=
⑦45×5687=
⑧256×49=
⑨456789-21354+12589=
⑩5687×356=
①35124+245167=
②9125467-564621=
③564621×9=
④5654869+25461-12456=
⑤26544×5+65012=
⑥564879亿-124569亿=
⑦254618万+564789万=
⑧6523145×6-123456=
⑨5641287×5=
⑩124659879-25641+65874=
⑪567×89+345 =
⑫689+8544÷89 =
⑬907-2295÷27 =
⑭2352÷(387-363) =
⑮1792÷(448÷16) =
⑯178×(3087÷49) =