本课配套习题挑战模式1/5
有个两位数,用它的个位、十位上的两个数之和的3倍减去-2,仍得原数,这个两位数是( )
A: 26 |
B: 36 |
C: 28 |
D: 38 |
- 提示1:PHA+5pWw5a2X6Zeu6aKY5YWz6ZSu5piv6K6+5Y2B5L2N5pWw5a2X5pivYe+8jOS4quS9jeaVsOWtl+aYr2LvvIzlvpfliLDljp/mlbDnmoTooajovr7lvI8xMGErYjxicj48L3A+
- 提示2:PHA+5qC55o2u6aKY5oSP5b6X5Yiw562J6YeP5YWz57O7PC9wPg==
- 答案:QQ==
PGRpdj7op6PvvJrorr7ljYHkvY3mlbDlrZfmmK9h77yM5Liq5L2N5pWw5a2X5pivYjxicj4z77yIYSti77yJLe+8iC0y77yJPTEwYStiPGJyPjdhPTJiKzI8YnI+5Y2zN2E9MmIrMu+8jOWPr+ingWHlj6rog73kuLrlgbbmlbDvvIxiKzHmmK8355qE5YCN5pWw77yOPGJyPuaVhemAiUHvvI48YnI+PC9kaXY+
本课配套习题挑战模式2/5
一个两位数的十位数字与个位数字之和为10,如果把这个两位数加上36,那么恰好成为个位数字与十位数字对调后组成的两位数,则这个两位数是( )
A: 37 |
B: 46 |
C: 28 |
D: 55 |
- 提示1:PHA+5YWI6K6+6L+Z5Liq5Lik5L2N5pWw55qE5Y2B5L2N5pWw5a2X5ZKM5Liq5L2N5pWw5a2X5YiG5Yir5Li6eO+8jDEwLXjlvpfliLDljp/mlbDkuLoxMHgrMTAteDxicj48L3A+
- 提示2:PHA+55SoeOihqOekuuWvueiwg+WJjeWQjueahOS4pOS9jeaVsOeahOihqOi+vuW8j+S4ujEw77yIMTAteO+8iSt4PGJyPjwvcD4=
- 提示3:PHA+5qC55o2u562J6YeP5YWz57O75YiX5pa556iLPC9wPg==
- 答案:QQ==
PGRpdj7op6PvvJrorr7ov5nkuKrkuKTkvY3mlbDnmoTljYHkvY3mlbDlrZfkuLp477yM5YiZ5Liq5L2N5pWw5a2X5Li6MTAteO+8jDxicj7nlLHpopjmhI/liJfmlrnnqIvlvpfvvIwxMHgrMTAteCszNj0xMO+8iDEwLXjvvIkreO+8jDxicj7op6Plvpd4PTPvvIw8YnI+4oi0MTAteD0xMC0zPTfvvIw8YnI+4oi06L+Z5Liq5Lik5L2N5pWw5Li6MzfvvI48YnI+5pWF6YCJQe+8jjxicj48L2Rpdj4=
本课配套习题挑战模式3/5
一个三位数,百位上的数字比十位上的数字大1,个位上的数字比十位上的数字的3倍少2.若将三个数字顺序倒过来,所得的三位数与原三位数的和是1171,则这个三位数为( )
A: 437 |
B: 324 |
C: 211 |
D: 652 |
- 提示1:PHA+6K6+5Y2B5L2N5LiK55qE5pWw5a2X5Li6eO+8jOWImeeZvuS9jeS4iueahOaVsOWtl+aYr3grMe+8jOS4quS9jeS4iueahOaVsOWtl+aYrzN4LTI8L3A+
- 提示2:PHA+5Y6f5LiJ5L2N5pWw5Y+v6KGo56S65Li6MTAw77yIeCsx77yJKzEweCvvvIgzeC0y77yJ77yM5paw5LiJ5L2N5pWw5Y+v6KGo56S65Li6MTAw77yIM3gtMu+8iSsxMHgr77yIeCsx77yJPC9wPg==
- 提示3:PHA+5qC55o2u4oCc5omA5b6X55qE5LiJ5L2N5pWw5LiO5Y6f5LiJ5L2N5pWw55qE5ZKM5pivMTE3MeKAneWPr+W+l+aWueeoizwvcD4=
- 答案:QQ==
PGRpdj7op6PvvJrorr7ljYHkvY3kuIrnmoTmlbDlrZfkuLp477yM5YiZ55m+5L2N5LiK55qE5pWw5a2X5piveCsx77yM5Liq5L2N5LiK55qE5pWw5a2X5pivM3gtMu+8jOeUsemimOaEj+W+l++8mjxicj4xMDDvvIh4KzHvvIkrMTB4K++8iDN4LTLvvIkrMTAw77yIM3gtMu+8iSsxMHgr77yIeCsx77yJPTExNzHvvIw8YnI+6Kej5b6X77yaeD0z77yMPGJyPuWIme+8mngrMT0077yMPGJyPjN4LTI9N++8jDxicj7ov5nkuKrkuInkvY3mlbDmmK/vvJo0w5cxMDArM8OXMTArNz00MzfvvIw8YnI+5pWF6YCJ77yaQe+8jjwvZGl2Pg==
本课配套习题挑战模式4/5
一个三位数的个位数字是7,若把个位数字移到首位,则新数比原数的5倍还多86,求这个三位数.设这个三位数的前两位数为x,则列出的方程应是( )
A: |
B: |
C: |
D: |
- 提示1:PHA+55SoeOihqOekuuaWsOaVsOS4ujcwMCt45ZKM5Y6f5pWw5Li6MTB4Kzc8YnI+PC9wPg==
- 提示2:PHA+5qC55o2u5YWz57O75byP77ya5paw5pWwLTg2PeWOn+aVsMOXNe+8jOS7o+WFpeWIl+WHuuaWueeoizxicj48L3A+
- 答案:Qg==
PGRpdj7op6PvvJrljp/mlbDkuLoxMHgrN++8jDxicj7mlrDmlbDkuLo3MDAreO+8jDxicj7iiLTlj6/liJfmlrnnqIvkuLo3MDAreC04Nj0177yIMTB4KzfvvInvvI48YnI+5pWF6YCJQu+8jjwvZGl2Pg==
本课配套习题挑战模式5/5
某年份的号码是一个四位数,它的千位数字是1,如果把1移到个位上去,那么所得的新四位数比原四位数的5倍少4,求这个年份( )
A: 1999 |
B: 1998 |
C: 2000 |
D: 1997 |
- 提示1:PHA+55Sx6aKY5oSP5YiG5Yir6K6+5Ye66L+Z5Liq5Zub5L2N5pWw55qE5Liq5L2N44CB5Y2B5L2N44CB55m+5L2N77yM5b6X5Yiw5Y6f5pWw55qE5Luj5pWw5byPMTAwMCsxMDBhKzEwYitjPGJyPjwvcD4=
- 提示2:PHA+54S25ZCO5qC55o2u5oqKMeenu+WIsOS4quS9jeS4iuWOuyzlvpfliLDmlrDmlbDnmoTku6PmlbDlvI8xMDAwYSsxMDBiKzEwYysxPGJyPjwvcD4=
- 提示3:PHA+5omA5b6X55qE5paw5Zub5L2N5pWw5q+U5Y6f5Zub5L2N5pWw55qENeWAjeWwkTTvvIzliJflh7rnrYnlvI88L3A+
- 答案:QQ==
PGRpdj7op6PvvJrorr7kuKrkvY3mlbDmmK9j77yM5Y2B5L2N5pWw5pivYu+8jOeZvuS9jeaVsOaYr2HvvIzliJk8YnI+4oi15Y2D5L2N5pWw5a2X5pivMe+8jOWmguaenOaKijHnp7vliLDkuKrkvY3kuIrljrvvvIzpgqPkuYjmiYDlvpfnmoTmlrDlm5vkvY3mlbDmr5Tljp/lm5vkvY3mlbDnmoQ15YCN5bCRNO+8jDxicj7iiLQxMDAwYSsxMDBiKzEwYysxPTXvvIgxMDAwKzEwMGErMTBiK2PvvIktNO+8jOS7pHg9MTAwYSsxMGIrYzxicj4xMHgrMT01w5fvvIgxMDAwK3jvvIktNDxicj7iiLR4PTk5Oe+8jDxicj7iiLTmlrDlm5vkvY3mlbDkuLrvvJoxMHgrMT05OTkx77yMPGJyPuKItOi/meS4quW5tOS7veS4ujE5OTnvvI48L2Rpdj4=