题目内容
脱式计算:
| 800-600÷20 | 18×(537-488) | 25×37×4 | 720÷16÷5. |
(1)800-600÷20,
=800-30,
=770;
(2)18×(537-488),
=18×49,
=882;
(3)25×37×4,
=25×4×37
=100×37,
=3700;
(4)720÷16÷5,
=720÷(16×5),
=720÷80,
=9.
=800-30,
=770;
(2)18×(537-488),
=18×49,
=882;
(3)25×37×4,
=25×4×37
=100×37,
=3700;
(4)720÷16÷5,
=720÷(16×5),
=720÷80,
=9.
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