Number Flashcards
1
Q
Write 7/10 as a decimal
A
0.7
2
Q
Write 1/4 as a decimal
A
0.25
3
Q
Write 3/8 as a decimal
A
0.375
4
Q
What is 0.8 as a percentage?
A
80%
5
Q
find 2/5 of 25
A
(25 ÷ 5 ) x 2 = 10
6
Q
find 4/7 of 280
A
(280÷ 7) x 4 = 160
7
Q
What are the first 5 square numbers ?
A
1, 4, 9, 16, 25
8
Q
What are the first 5 cube numbers
A
1, 8, 27, 64 125
9
Q
what is the cubed root of 125
A
5
10
Q
what is 23
A
2 x 2 x 2 = 8
11
Q
Factors of 20
A
1, 2, 4, 5, 10, 20
12
Q
Multiples of 7
A
7, 14, 21, 28, 35, …
13
Q
The first five prime numbers
A
2, 3, 5, 7, 11
14
Q
Highest common factor of 12 and 8
A
4
15
Q
Lowest common multiple of 12 and 8
A
24
16
Q
3 + 5 x 3
A
18
17
Q
-4 x -3
A
12
18
Q
-3 x 2
A
-6
19
Q
-10 ÷ 2
A
-5
20
Q
-4 - 3
A
-7
21
Q
-20 ÷ -5
A
4
22
Q
The first 3 integers that satisfy x > 9
A
10, 11, 12
23
Q
Cube root of 125
A
5
24
Q
Square of 9
A
81
25
What does this say
3 \< x \< 8
x is greater than 3 and less than 8
