Mental math Flashcards
1
Q
17 x 1 =
A
17
2
Q
17 x 2 =
A
34
3
Q
17 x 3 =
A
51
4
Q
17 x 4 =
A
68
5
Q
17 x 5 =
A
85
6
Q
17 x 6 =
A
102
7
Q
17 x 7 =
A
119
8
Q
17 x 8 =
A
136
9
Q
17 x 9 =
A
153
10
Q
17 x 10 =
A
170
11
Q
12 x 2 =
A
24
12
Q
12 x 3 =
A
36
13
Q
12 x 4 =
A
48
14
Q
12 x 5 =
A
60
15
Q
12 x 6 =
A
72
16
Q
12 x 7 =
A
74
17
Q
12 x 8 =
A
96
18
Q
12 x 9 =
A
108
19
Q
12 x 1 =
A
120
20
Q
13 x 1 =
A
13
21
Q
13 x 2 =
A
26
22
Q
13 x 3 =
A
39
23
Q
13 x 4 =
A
52
24
Q
13 x 5 =
A
65
25
13 x 6 =
78
26
13 x 7 =
91
27
13 x 8 =
104
28
13 x 9 =
117
29
How to multiply by 25?
add two 0s to the number and then divide by 4
