题目内容
| 用递等式计算: 3.97+0.7-1.32 | 30-(3.8+0.75) | 75.6-(14.3-8.3) |
| 65+32×4 | (47+33)×13 | (132-17)÷(31-8) |
(1)3.97+0.7-1.32,
=4.67-1.32,
=3.35;
(2)30-(3.8+0.75),
=30-4.55,
=25.45;
(3)75.6-(14.3-8.3),
=75.6-6,
=69.6;
(4)65+32×4,
=65+128,
=193;
(5)(47+33)×13,
=80×13,
=1040;
(6)(132-17)÷(31-8),
=115÷23,
=5.
=4.67-1.32,
=3.35;
(2)30-(3.8+0.75),
=30-4.55,
=25.45;
(3)75.6-(14.3-8.3),
=75.6-6,
=69.6;
(4)65+32×4,
=65+128,
=193;
(5)(47+33)×13,
=80×13,
=1040;
(6)(132-17)÷(31-8),
=115÷23,
=5.
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