题目内容
脱式计算
| 480÷6-35 | 40×7+55 | 25×4×8 |
| 76-18×4 | (57+33)÷3 | 48÷6×15. |
(1)480÷6-35,
=80-35,
=45;
(2)40×7+55,
=280+55,
=335;
(3)25×4×8,
=(25×4)×8,
=100×8,
=800,;
(4)76-18×4,
=76-72,
=4;
(5)(57+33)÷3,
=90÷3,
=30;
(6)48÷6×15,
=8×15,
=120.
=80-35,
=45;
(2)40×7+55,
=280+55,
=335;
(3)25×4×8,
=(25×4)×8,
=100×8,
=800,;
(4)76-18×4,
=76-72,
=4;
(5)(57+33)÷3,
=90÷3,
=30;
(6)48÷6×15,
=8×15,
=120.
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