Multiplication / Mental Math Flashcards
8 x 9
72
1 / 5
0.2
Multiple of x + / - Multiple of x
Multiple of x
Multiple of x + / - Non-multiple of x
Non-multiple of x
Non-multiple of x + / - Non-multiple of x
Maybe Multiple of x
Any consecutive x #s multiplied together
Multiple of x
*If successive numbers pass 0, then obviously result of multiplication is 0
Non-multiple of x * Non-multiple of x
Non-multiple of x
Multiple of x * Multiple of x
Multiple of x AND Multiple of x Squared
Multiple of x / Multiple of x
May or may not be a multiple of x
3 x 8
24
7^4
2401
50^2
2500
1 x 1
1
2 / 3
0.6666
2 x 2
4
6!
720
3 x 9
27
5 x 5
25
1 / 3
.3333
4!
24
25^2
625
4 x 6
24
9 x 8
72
12 x 3
12
5 / 6
.8333
5!
120
5 x 4
20
3 / 5
.6
1 x 2
2
9 x 2
18
6 x 9
54
8 x 6
48
3 x 2
6
1 x 3
3
2^10
1024
7 x 8
56
2 x 5
10
2^9
512
7 x 6
42
2^8
256
7 x 9
63
2 x 8
16
2^7
128
3 x 3
9
8 x 1
8
6 x 7
42
12 x 12
144
4 x 9
36
6 x 3
18
2^4
16
6 x 1
6
4 x 8
32
6 x 5
30
2^2
4
1 / 6
.16666
7 / 8
.875
1 x 4
4
9 x 3
27
13^2
169
5 x 6
30
1 x 8
8
12 x 10
120
9 x 6
54
5 x 9
45
12 x 4
48
1 / 2
.5
12 x 2
24
12 x 6
72
3 / 4
.75
9 x 1
9
4 x 5
20
7 x 3
21
1 x 6
6
3 x 4
12
2 x 6
12
2 x 9
18
6 x 6
36
7 x 5
35
2^5
32
6 x 8
48
3 x 5
15
3 x 1
3
8 x 7
56
12^2
144
12 x 11
132
2^6
64
3^6
729
8 x 8
64
8 x 5
40
3!
6
5 / 8
.625
1 x 7
7
30^2
900
9 x 9
81
12 x 3
36
4 x 7
28
100^2
10,000
7 x 7
49
3 x 7
21
4 / 5
.8
9 x 7
63
4 x 1
4
3^4
81
15^2
225
1 / 4
.25
5 x 1
5
20^2
400
12 x 1
12
8 x 2
16
5^4
625
11 x 11
121
6^2
36
3^2
9
9 x 4
36
6^4
1296
√2
~1.4
5 x 8
40
3^5
243
5^5
3125
7 x 2
14
8 x 4
32
3^3
27
6^3
216
12 x 5
60
1 / 8
.125
5 x 3
15
Common Pythagorean Triples
3, 4, 5
5, 12, 13
7, 24, 25
8, 15, 17
Primes under 40
2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37
2 x 1
2
2^3
8
6 x 2
12
12 x 8
96
12 x 9
108
2 x 7
14
√5
~2.2
5^2
25
5 x 7
35
9 x 5
45
1 x 9
9
5^3
125
1 X 5
5
2 X 3
6
7^3
343
2/5
0.4
14^2
196
3/8
0.375
12 X 7
84
5 X 2
10
40^2
1600
7 X 4
28
4 X 4
16
√3
~1.7
2 X 4
8
4 X 2
8
8 X 3
24
7^2
49
6 X 4
24
7 X 1
7
