Missing Minuend (30-38) Using Subtrahend (11-19); Reinforced by Missing Sum Flashcards
1
Q
___ - 11 = 19
___ = 11 - 19
A
= 30
2
Q
___ - 12 = 18
___ = 12 + 18
A
= 30
3
Q
___ - 13 = 17
___ = 13 + 17
A
= 30
4
Q
___ - 14 = 16
___ = 14 + 16
A
= 30
5
Q
___ - 15 = 15
___ = 15 + 15
A
= 30
6
Q
___ - 16 = 14
___ = 16 + 14
A
= 30
7
Q
___ - 17 = 13
___ = 17 + 13
A
= 30
8
Q
___ - 18 = 12
___ = 18 + 12
A
= 30
9
Q
___ - 19 = 11
___ = 19 + 11
A
= 30
10
Q
___ - 12 = 19
___ = 12 + 19
A
= 31
11
Q
___ - 13 = 18
___ = 13 + 18
A
= 31
12
Q
___ - 14 = 17
___ = 14 + 17
A
= 31
13
Q
___ - 15 = 16
___ = 15 + 16
A
= 31
14
Q
___ - 16 = 15
___ = 16 + 15
A
= 31
15
Q
___ - 17 = 14
___ = 17 + 14
A
= 31
16
Q
___ - 18 = 13
___ = 18 + 13
A
= 31
17
Q
___ - 19 = 12
___ = 19 + 12
A
= 31
18
Q
___ - 13 = 19
___ = 13 + 19
A
= 32
