小学三年级四则混合运算练习题.docx
炸土豆条的做法-
三年级上册数学混合运算专项练习题
270
÷
3
×
9
2800+32
×
6
(6900-2400)
54
÷
9<
/p>
×
8
60
×
8+
1570
5
630
300
(72
280
60
÷
9+320
÷
6
×
9
9)+(56
÷
8)
×
4
÷
5
(23-17)
÷
÷
÷
22
×
4+221
40
÷
2+174
9
×
4+420
120
×
5
÷
2
30
÷
5+240
21
147+72
2
202+36
81
×
3+410
÷
8
80
÷
4
÷
9
÷
9+877
×
66
×
5+774
80
×
6
×
2
807+20
÷
2
35-35
÷
7
600-12
×
3
770
100-50
302+30
64
921+
7
×
4
÷<
/p>
7+65
÷
5
×
2
÷
8+456
640+60
×
4
42
÷
7+36
÷
6
< br>10
×
4-20
÷
4
25
÷
5+42
÷
6
72
÷
9-36
÷
6
5
37
15
35
21
×
7-48
÷
6
×
4+
19
×
8
÷
3
+10
÷
5
÷
5+8
×
7
×
4-54
÷
9
72
÷
8+9
×
5
25
÷
5-16
÷
4
500
×
(400-396)
564+264
-453
65
×
9-450
36
÷
4+
21
×
2
56
÷
7+
36
÷
6
72
÷
9-5
7650-(546+4530)
9
×
80+980
9000-(4500+250)
14
×
6+9
×
5
180
÷
9-42
÷
6
8
×
(910-720)
6500+1250-3500
6700+72
÷
8
900
÷
(72-68)
12
÷
6+
45
×
3
760-540+1110
80
×
30+5600