题目内容
脱式计算.
| 1721×(36÷9) | 503×(606-585) | 58+142÷2 | 678÷(3×2) |
(1)1721×(36÷9),
=1721×4,
=6884;
(2)503×(606-585),
=503×21,
=10563;
(3)58+142÷2,
=58+71,
=129;
(4)678÷(3×2),
=678÷6,
=113.
=1721×4,
=6884;
(2)503×(606-585),
=503×21,
=10563;
(3)58+142÷2,
=58+71,
=129;
(4)678÷(3×2),
=678÷6,
=113.
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