Positive and Negative Numbers
Calculate:
-16 + 16
0
3a + 2a + a
6a
Complete the equation:
5 + _____ = 2 x 7
7
Given that x = 10, decide whether the inequality is true:
x is less than or equal to 5
False
What makes a number a prime number?
It has exactly 2 factors.
Calculate:
10 - -4
14
Work out the value of the expression when x = 6
3x + 4
22
Complete the equation:
8 - (-10) = 6 + _____
12
2x + 5 > 12
True
What is the value of the digit 4 in the number below?
12,345,678
40,000 or forty thousand
-20/5
-4
Expand the brackets:
2(x + 7)
2x + 14
There are 5 times as many roses as there are tulips in a bouquet. Write an equation to show this, using r for roses and t for tulips.
r = 5t
Given that a = 4 and b = -4, decide if the inequality is true or false.
a + b > 1
False
List the first five square numbers.
1, 4, 9, 16, 25
What is an integer?
A positive or negative whole number
Factorise the expression:
6y + 9
3(2y + 3)
Solve the equation:
6x = 42
x = 7
Given that a = 4 and b = -4, decide if the inequality is true or false.
2b < a - 6
True
Write all the factors of 60
1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
Evaluate:
7 + -2 x -8 - 5
18
a = 3; b = 4; c = 1
Find b2 - 4ac
4
Solve the equation:
m/3 = -15
m = -45
x is an integer such that -1 < x < 5. List all the possible values of x.
What is the difference between a factor and a multiple?
A multiple of a number is in the number's times table. A factor of a number divides that number evenly with no remainder.