整數簡算題目及答案1.計算：\(123+456\times789\)答案：\(123+456\times789=123+359424=359547\)2.計算：\(1000-234\times5\)答案：\(1000-234\times5=1000-1170=-170\)3.計算：\(3456\div4\times6\)答案：\(3456\div4\times6=864\times6=5184\)4.計算：\(7890\times(1000-234)\)答案：\(7890\times(1000-234)=7890\times766=6046740\)5.計算：\(1234\times5678-8765\times4321\)答案：\(1234\times5678-8765\times4321=7006652-37834165=-30827513\)6.計算：\(12345\div67\times89\)答案：\(12345\div67\times89=184.253731343\times89\approx16357.45\)（結果保留兩位小數）7.計算：\(10000-1234\times5678\)答案：\(10000-1234\times5678=10000-7006652=-6996652\)8.計算：\(2345\times6789+3456\times7890\)答案：\(2345\times6789+3456\times7890=15904205+27270240=43174445\)9.計算：\(98765\div3\times4567\)答案：\(98765\div3\times4567=32921.666667\times4567\approx149953742.33\)（結果保留兩位小數）10.計算：\(1234\times5678+8765\times4321\)答案：\(1234\times5678+8765\times4321=7006652+37834165=44840817\)11.計算：\(3456\times7890-1234\times5678\)答案：\(3456\times7890-1234\times5678=27303840-7006652=20297188\)12.計算：\(10000\div5\times67\)答案：\(10000\div5\times67=2000\times67=134000\)13.計算：\(2345\times6789-3456\times7890\)答案：\(2345\times6789-3456\times7890=15904205-27270240=-11366035\)14.計算：\(98765\div3\times4567-10000\)答案：\(98765\div3\times4567-10000=149953742.33-10000\approx149943742.33\)（結果保留兩位小數）15.計算：\(1234\times5678\times8765\)答案：\(1234\times5678\times8765=7006652\times8765=61430787980\)16.計算：\(3456\times7890\times2345\)答案：\(3456\times7890\times2345=27303840\times2345=64008326800\)17.計算：\(10000\div5\times67+12345\)答案：\(10000\div5\times67+12345=134000+12345=146345\)18.計算：\(2345\times6789+3456\times7890-1234\times5678\)答案：\(2345\times6789+3456\times7890-1234\times5678=15904205+27270240-7006652=36167793\)19.計算：\(98765\div3\times4567+10000\)答案：\(98765\div3\times4567+10000=149953742.33+10000\approx149963742.33\)（結果保留兩位小數）20.計算：\(1234\times5678\times8765+3456\times7890\times