北师大版数学三年级下册口算练习
物是人非是什么意思-班级鉴定
+= += += -= -=
-= +=
25+= -= 10-=
+= += += -= -=
-= += 10+= -= 20-=
1+= +=
+= -= -=
-= += 6+= -= 18-=
+= += += -= -=
-= += 15+=
-= 13-=
+= -= += -= +=
+= -=
-= += -=
70×3= 16×3= 36×20=
24×20= 60×30= 98×100=
120×30=
12×70= 19×30=
14×60= 24×30=
130×20= 27
30×50= 40×40= 50×20=
16
27×20= 30×26= 18×50= 50
70×60=
75×80= 28×20= 14
18×30= 3×500=
42×20= 25
12×40= 50×20= 30×50=
1700
13×3= 14×20= 90×60= 29
1
18×40=
50×22=
30×40=
×30= 15
×40= 28
×3=
36
×70= 120
×50= 50
×5=
11
×30= 50
42×50=
80×90=
25×80=
×50=
×200=
×50=
×30=
×60=
×20=
×80=
233253482
+ = - = 1- =
+ = - =
88888101099
145211241
+
= - = 1- = + = + =
997754477
25333111
+ = - =
1- = + = 1- =
88
52
8
-
8
=
1
3
+
1
3
=
1
4
+
3
4
=
4
7
-
1
7
=
3
5
-
1
5
=
9
10
-
7
10
=
1
2
+
1
2
=
30×2=
640-340=
80÷2=
700+300=
500×4=
800-600=
210÷3=
447
7
10
-
532
10
=
6
+
6
= 1
7
8
-
5
8
=
2
5
+
2
5
=
5
7
-
326
7
=
9
+
9
=
1
3
+
2
3
=
7
10
-
3
10
=
1
2213
4
+
4
=
5
+
5
=
2
7
+
4
7
=
1-
3
8
=
7
9
-
3
9
=
31
8
+
8
=
1
69÷3=
13×3=
48÷2=
31×3=
2
22
-
2
9
=
5
6
-
3
6
= 1
4
5
-
3
5
= 1
-
3
10
=
4
8
+
3
8
=
21
5
+
5
=
-
3
4
=
55×2=
48÷3=
65×4=
90÷5=
6
3
6
-
2
6
=
-
2
6
=
-
4
9
=
2
9
+
4
9
=
5
9
-
4
9
=
3
7
+
3
7
=
2
7
-
2
7
=
3×7+6=
4×9+8=
7+8×8=
7×7+4=
180+70=
6×70=
88÷4= 16×7= 8×9+4=
305-100=
240÷4= 34×2= 75÷5= 6×9+6=
210+430=
300×2= 48
80÷4=
180×0=
40×5=
710-210=
420÷7=
250+280=
30×4=
350-200=
300÷5=
16
50×8=
620-260=
800÷4=
13
60×7=
230+760=
4200÷7=
500-500=
÷4= 22
24×2=
46÷1=
24×4=
99÷3=
×3=
45
96÷3=
×5= 96
86÷2=
14×3=
×6= 8
÷3= 0
÷6=
5+2
3
×5+6=
61-33=
84÷6=
17×6=
60÷5=
11×8=
×5+8= 86+78=
44×5=
×8= 54+25=
65×2=
72÷4=
5×9+8=
6×9+3=
2×6+4=
4×8+2=
7×3+4=
2×6+5=
69×0=
7×6+52= 18÷6+11= 45÷5+23=
200+400÷8= 310-
(16+24)48÷6×7= 20-10÷5=
50×5÷5= 600÷2÷3
(3+6)×2
54+18÷9=
5×8×6= 8×8+6= 15×5+20=
200÷4+30=
93÷3-18=
300÷6+5=
15+25)2= 600×4-2000=
4
80-20×3=
(×