60×50=
480÷60=
280÷70=
37×30=
13×4=
910-280=
390÷13=
15×40=
15×60=
720÷80=
800÷40=
16×50=
32×50=
450-160=
720÷12=
23×50=
30×4=
420÷60=
450÷15=
300-246=
60×8=
630÷70=
650÷13=
39×20=
33×4=
48×50=
560÷70=
65+35=
360÷40=
150÷5=
6300÷900=
490÷7=
850÷50=
680-560=
250×4=
250×4=
620÷2=
160÷40=
3000
480÷60=
8
280÷70=
4
37×30=
1110
13×4=
52
910-280=
630
390÷13=
30
15×40=
600
15×60=
900
720÷80=
9
800÷40=
20
16×50=
800
32×50=
1600
450-160=
290
720÷12=
60
23×50=
1150
30×4=
120
420÷60=
7
450÷15=
30
300-246=
54
60×8=
480
630÷70=
9
650÷13=
50
39×20=
780
33×4=
132
48×50=
2400
560÷70=
8
65+35=
100
360÷40=
9
150÷5=
30
6300÷900=
7
490÷7=
70
850÷50=
17
680-560=
120
250×4=
1000
250×4=
1000
620÷2=
310
160÷40=
4
答案
3000
8
4
1110
52
630
30
600
900
9
20
800
1600
290
60
1150
120
7
30
54
480
9
50
780
132
2400
8
100
9
30
7
70
17
120
1000
1000
310
4
8
4
1110
52
630
30
600
900
9
20
800
1600
290
60
1150
120
7
30
54
480
9
50
780
132
2400
8
100
9
30
7
70
17
120
1000
1000
310
4
5400÷600
=54÷6
=
=54÷6
=
9
答案
5400÷600
=54÷6
=9
=54÷6
=9
7200÷900
=
=
=
72÷9
=
8
答案
7200÷900
=72÷9
=8
=72÷9
=8
4800÷80
=
=
=
480÷8
=
60
答案
4800÷80
=480÷8
=60
=480÷8
=60
1500÷300
=
=
=
=
(1500÷100)÷(300÷100)
=
15÷3
=
5
答案
1500÷300
=(1500÷100)÷(300÷100)
=15÷3
=5
=(1500÷100)÷(300÷100)
=15÷3
=5
5400÷1800
=
=
=
54÷18
=
3
答案
5400÷1800
=54÷18
=3
=54÷18
=3
8000÷160
=
=
=50
=
8000÷80÷2
=
100÷2
=50
答案
8000÷160
=8000÷80÷2
=100÷2
=50
=8000÷80÷2
=100÷2
=50
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