Number
Write 480,000 in standard form.
4.8 × 10⁵
What do we call the two values of x that solve a quadratic equation?
The roots (solutions)
What do we call it when two quantities increase and decrease together at a constant rate, one up as the other goes down?
Inverse proportion
What is the name for a triangle with all three angles equal (60° each)?
Equilateral
What is 240 ÷ 0.6?
400
What is £2,000 after 5% simple interest for one year?
£2,100
What is the gradient of the line y = 3x - 2?
What do we call the -2?
Gradient = 3
Y-intercept = -2
What is £15,000 after depreciating by 10% for one year?
£13,500
In a right-angled triangle, what is the name of the longest side, opposite the right angle?
The hypotenuse.
What is 7/8 ÷ 1/4?
3½ (or 7/2)
What is the reciprocal of 4/5?
5/4
Expand (x + 3)(x + 2)
x² + 5x + 6
Simplify this ratio 99:27:90
11 : 3 : 10
What do we call a line from the center of a circle to its edge? What about a line from edge to edge passing through the center?
Radius and diameter.
243 ÷ 12
20.25
What is 3/8 as a decimal?
0.375
What is the 10th term of the sequence given by 2n − 1?
19
In a class, the ratio of boys to girls is 4:5. What fraction of the class are girls?
5/9
What is the length of the hypotenuse of a right triangle with sides 3cm and 4cm?
5 cm
20 − (2 + 3) × 2
10
Simplify: 3² × 3³
3⁵ (or 243)
Expand and simplify 4(2x − 3) + 6(4 + 7x)
50x + 12
An item costs £84 after a 20% discount. What was the original price?
£105
What is a 2D shape with 9 sides called?
A nonagon
17² − 8³ + √225
289 − 512 + 15 = −208