Which is the correct one to use - 4, 1 or both ?
4__ + 9 = 50
1 + __ = 5
5__ + 6 = 60
60 + __ = 61
7__ + 5 = 79
82 + __ = 86
85 + __ = 86
4__ + 11 = 55
5__ + 1 = 55
100 x 4 = __00
10 + 4 = 1__
6__ - 2 = 62
84 + __ + 1 = 89
__00 - 100 = 300
__00 x 2 = 800
1000 x __ = 4000
44 + __ = 48
444 - __ = 400
__000 x 3 = 12 000
61
6
44 + 11 = 55
54 + 1 = 55
100 x 4 = 400
10 + 4 = 14
64 - 2 = 62
84 + 4 + 1 = 89
400 - 100 = 300
400 x 2 = 800
1000 x 4 = 4000
44 + 4 = 48
444 - 44 = 400
