添括号,使下列等式成立:
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添括号,使下列等式成立:
6+36÷3-2×4-1=5
6+36÷3-2×4-1=149
6+36÷3-2×4-1=63.
6+36÷3-2×4-1=5
6+36÷3-2×4-1=149
6+36÷3-2×4-1=63.
(6+36)÷3-2×4-1,
=42÷3-2×4-1,
=14-8-1
=5;
6+36÷(3-2)×4-1,
=6+36÷1×4-1,
=6+36×4-1,
=6+144-1,
=149;
(6+36÷3-2)×4-1,
=(6+12-2)×4-1,
=16×4-1,
=64-1,
=63;
故答案为:
(6+36)÷3-2×4-1=5;
6+36÷(3-2)×4-1=149;
(6+36÷3-2)×4-1=63.
=42÷3-2×4-1,
=14-8-1
=5;
6+36÷(3-2)×4-1,
=6+36÷1×4-1,
=6+36×4-1,
=6+144-1,
=149;
(6+36÷3-2)×4-1,
=(6+12-2)×4-1,
=16×4-1,
=64-1,
=63;
故答案为:
(6+36)÷3-2×4-1=5;
6+36÷(3-2)×4-1=149;
(6+36÷3-2)×4-1=63.