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19+28+37+46+55+64+73+82+91+=550.
题目详情
19+28+37+46+55+64+73+82+91+______=550. |
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答案和解析
550-(19+28+37+46+55+64+73+82+91),
=550-[(19+91)+(28+82)+(37+73)+(46+64)+55],
=550-[440+55],
=550-440-55,
=55;
故答案为:55. 550-(19+28+37+46+55+64+73+82+91),
=550-[(19+91)+(28+82)+(37+73)+(46+64)+55],
=550-[440+55],
=550-440-55,
=55;
故答案为:55. 550-(19+28+37+46+55+64+73+82+91),
=550-[(19+91)+(28+82)+(37+73)+(46+64)+55],
=550-[440+55],
=550-440-55,
=55;
故答案为:55. 550-(19+28+37+46+55+64+73+82+91),
=550-[(19+91)+(28+82)+(37+73)+(46+64)+55],
=550-[440+55],
=550-440-55,
=55;
故答案为:55.
550-(19+28+37+46+55+64+73+82+91), =550-[(19+91)+(28+82)+(37+73)+(46+64)+55], =550-[440+55], =550-440-55, =55; 故答案为:55. |
=550-[(19+91)+(28+82)+(37+73)+(46+64)+55],
=550-[440+55],
=550-440-55,
=55;
故答案为:55.
=550-[(19+91)+(28+82)+(37+73)+(46+64)+55],
=550-[440+55],
=550-440-55,
=55;
故答案为:55.
=550-[(19+91)+(28+82)+(37+73)+(46+64)+55],
=550-[440+55],
=550-440-55,
=55;
故答案为:55.
=550-[(19+91)+(28+82)+(37+73)+(46+64)+55],
=550-[440+55],
=550-440-55,
=55;
故答案为:55.
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