MATH Flashcards
1
Q
1/8
A
0.125
2
Q
√2
A
1.4 (St. Valentine’s)
3
Q
1/3
A
0.33
4
Q
1/4
A
0.25
5
Q
1/5
A
0.2
6
Q
1/8
A
0.125
7
Q
1/9
A
0.111
8
Q
1/10
A
0.10
9
Q
1/100
A
0.010
10
Q
√3
A
1.7 (St. Patrick’s)
11
Q
2^2
A
4
12
Q
3^2
A
9
13
Q
4^2
A
16
14
Q
5^2
A
25
15
Q
6^2
A
36
16
Q
7^2
A
49
17
Q
8^2
A
64
18
Q
9^2
A
81
19
Q
Estimating squares
A
Do not round the number being squared - e.g. (4.4)^2 = 19.36 ; 4^2 = 16. This is too far off. Instead: (4.4)^2 will be between 4^2 and 5^2, but slightly closer to 4^2. It will be slightly less than halfway between 16 and 25, so approximately 20.
20
Q
Estimating square roots
A
√31 - somewhere between √36 and √25 - somewhere between 5 and 6, but closer to 6. A little more than halfway between the 2 - let’s say 5.6. Actual answer: 5.56
21
Q
log(1)
A
0
22
Q
log(2)
A
0.3
23
Q
log(3)
A
0.48
24
Q
log(4)
A
0.6
25
Q
log(5)
A
0.7
26
Q
log(6)
A
0.78
27
Q
log(7)
A
0.85
28
Q
log(8)
A
0.9
29
Q
log(9)
A
0.95
30
Q
log(10)
A
1
