问题 解答题
计算:
128+35×3700-125×3330÷5+46×7(210+630)÷7
145-150÷2+23560÷4-630÷712×(280-80÷4)38.7÷9-66.8÷40
(135+55)÷(15-7)4.5+5.5÷5-3.4226×4-425÷5(100-51)÷0.07
(37×15-55)×8(445÷5+172)×18300-(76+40×3)8.9×200-1.2÷0.06
522÷(328-319)+42
8
9
+
1
18
+
1
2
1-
5
6
+
1
7
答案

(1)128+35×3,

=128+105,

=233;

(2)700-125×3,

=700-375,

=325;

(3)330÷5+46×7,

=66+322,

=388;

(4)(210+630)÷7,

=840÷7,

=120;

(5)145-150÷2+23,

=145-75+23,

=70+23,

=93;

(6)560÷4-630÷7,

=140-90,

=50;

(7)12×(280-80÷4),

=12×(280-20),

=12×260,

=3120;

(8)38.7÷9-66.8÷40,

=4.3-1.67,

=2.63;

(9)(135+55)÷(15-7),

=190÷8,

=23.75;

(10)4.5+5.5÷5-3.42,

=4.5+1.1-3.42,

=5.6-3.42,

=2.18;

(11)26×4-425÷5,

=104-85,

=19;

(12)(100-51)÷0.07,

=49÷0.07,

=700;

(13)(37×15-55)×8,

=(555-55)×8,

=500×8,

=4000;

(14)(445÷5+172)×18,

=(89+172)×18,

=261×18,

=4698;

(15)300-(76+40×3),

=300-(76+120),

=300-196,

=104;

(16)8.9×200-1.2÷0.06,

=1780-20,

=1760;

(17)522÷(328-319)+42,

=522÷9+42,

=58+42,

=100;

(18)

8
9
+
1
18
+
1
2

=

17
18
+
1
2

=

13
9

(19)1-

5
6
+
1
7

=

1
6
+
1
7

=

13
42

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